diff --git a/.changeset/kind-walls-accept.md b/.changeset/kind-walls-accept.md
new file mode 100644
index 00000000..3286eb90
--- /dev/null
+++ b/.changeset/kind-walls-accept.md
@@ -0,0 +1,5 @@
+---
+"fingerprint-pro-server-api-python-sdk": patch
+---
+
+Correctly serialize nullable fields to `null`
diff --git a/.changeset/pre.json b/.changeset/pre.json
new file mode 100644
index 00000000..88d22cdd
--- /dev/null
+++ b/.changeset/pre.json
@@ -0,0 +1,8 @@
+{
+  "mode": "pre",
+  "tag": "dev",
+  "initialVersions": {
+    "fingerprint-pro-server-api-python-sdk": "8.2.0"
+  },
+  "changesets": []
+}
diff --git a/fingerprint_pro_server_api_sdk/base_model.py b/fingerprint_pro_server_api_sdk/base_model.py
index 8f114226..3de213d1 100644
--- a/fingerprint_pro_server_api_sdk/base_model.py
+++ b/fingerprint_pro_server_api_sdk/base_model.py
@@ -7,6 +7,7 @@ class BaseModel:
 
     swagger_types: Dict[str, str] = {}
     attribute_map: Dict[str, str] = {}
+    nullable_map: Dict[str, bool] = {}
 
     def to_dict(self) -> Dict[str, Union[list, dict]]:
         """Returns the model properties as a dict"""
@@ -28,6 +29,9 @@ def to_dict(self) -> Dict[str, Union[list, dict]]:
                     value.items()
                 ))
             elif value is None:
+                if self.nullable_map[attr]:
+                    result[attr] = None
+
                 continue
             else:
                 result[attr] = value
diff --git a/fingerprint_pro_server_api_sdk/models/botd.py b/fingerprint_pro_server_api_sdk/models/botd.py
index 0a0080cb..c29b4f2d 100644
--- a/fingerprint_pro_server_api_sdk/models/botd.py
+++ b/fingerprint_pro_server_api_sdk/models/botd.py
@@ -44,6 +44,17 @@ class Botd(BaseModel):
         'request_id': 'str'
     }
 
+    nullable_map = {
+        'bot': False,
+        'meta': False,
+        'linked_id': False,
+        'url': False,
+        'ip': False,
+        'time': False,
+        'user_agent': False,
+        'request_id': False
+    }
+
     attribute_map = {
         'bot': 'bot',
         'meta': 'meta',
diff --git a/fingerprint_pro_server_api_sdk/models/botd_bot.py b/fingerprint_pro_server_api_sdk/models/botd_bot.py
index 1b97d25d..cc2393e2 100644
--- a/fingerprint_pro_server_api_sdk/models/botd_bot.py
+++ b/fingerprint_pro_server_api_sdk/models/botd_bot.py
@@ -36,6 +36,11 @@ class BotdBot(BaseModel):
         'type': 'str'
     }
 
+    nullable_map = {
+        'result': False,
+        'type': False
+    }
+
     attribute_map = {
         'result': 'result',
         'type': 'type'
diff --git a/fingerprint_pro_server_api_sdk/models/botd_bot_result.py b/fingerprint_pro_server_api_sdk/models/botd_bot_result.py
index 5a6c3fa4..f3fcbf41 100644
--- a/fingerprint_pro_server_api_sdk/models/botd_bot_result.py
+++ b/fingerprint_pro_server_api_sdk/models/botd_bot_result.py
@@ -40,6 +40,9 @@ class BotdBotResult(BaseModel):
     swagger_types = {
     }
 
+    nullable_map = {
+    }
+
     attribute_map = {
     }
 
diff --git a/fingerprint_pro_server_api_sdk/models/browser_details.py b/fingerprint_pro_server_api_sdk/models/browser_details.py
index 0acb32b8..d4defce9 100644
--- a/fingerprint_pro_server_api_sdk/models/browser_details.py
+++ b/fingerprint_pro_server_api_sdk/models/browser_details.py
@@ -37,6 +37,16 @@ class BrowserDetails(BaseModel):
         'user_agent': 'str'
     }
 
+    nullable_map = {
+        'browser_name': False,
+        'browser_major_version': False,
+        'browser_full_version': False,
+        'os': False,
+        'os_version': False,
+        'device': False,
+        'user_agent': False
+    }
+
     attribute_map = {
         'browser_name': 'browserName',
         'browser_major_version': 'browserMajorVersion',
diff --git a/fingerprint_pro_server_api_sdk/models/cloned_app.py b/fingerprint_pro_server_api_sdk/models/cloned_app.py
index 44750f20..48bc1053 100644
--- a/fingerprint_pro_server_api_sdk/models/cloned_app.py
+++ b/fingerprint_pro_server_api_sdk/models/cloned_app.py
@@ -31,6 +31,10 @@ class ClonedApp(BaseModel):
         'result': 'bool'
     }
 
+    nullable_map = {
+        'result': False
+    }
+
     attribute_map = {
         'result': 'result'
     }
diff --git a/fingerprint_pro_server_api_sdk/models/deprecated_geolocation.py b/fingerprint_pro_server_api_sdk/models/deprecated_geolocation.py
index f786fbb8..b5641428 100644
--- a/fingerprint_pro_server_api_sdk/models/deprecated_geolocation.py
+++ b/fingerprint_pro_server_api_sdk/models/deprecated_geolocation.py
@@ -46,6 +46,18 @@ class DeprecatedGeolocation(BaseModel):
         'subdivisions': 'GeolocationSubdivisions'
     }
 
+    nullable_map = {
+        'accuracy_radius': False,
+        'latitude': False,
+        'longitude': False,
+        'postal_code': False,
+        'timezone': False,
+        'city': False,
+        'country': False,
+        'continent': False,
+        'subdivisions': False
+    }
+
     attribute_map = {
         'accuracy_radius': 'accuracyRadius',
         'latitude': 'latitude',
diff --git a/fingerprint_pro_server_api_sdk/models/developer_tools.py b/fingerprint_pro_server_api_sdk/models/developer_tools.py
index 43a2e9e9..ebba504e 100644
--- a/fingerprint_pro_server_api_sdk/models/developer_tools.py
+++ b/fingerprint_pro_server_api_sdk/models/developer_tools.py
@@ -31,6 +31,10 @@ class DeveloperTools(BaseModel):
         'result': 'bool'
     }
 
+    nullable_map = {
+        'result': False
+    }
+
     attribute_map = {
         'result': 'result'
     }
diff --git a/fingerprint_pro_server_api_sdk/models/emulator.py b/fingerprint_pro_server_api_sdk/models/emulator.py
index 2690502a..f675b0cc 100644
--- a/fingerprint_pro_server_api_sdk/models/emulator.py
+++ b/fingerprint_pro_server_api_sdk/models/emulator.py
@@ -31,6 +31,10 @@ class Emulator(BaseModel):
         'result': 'bool'
     }
 
+    nullable_map = {
+        'result': False
+    }
+
     attribute_map = {
         'result': 'result'
     }
diff --git a/fingerprint_pro_server_api_sdk/models/error.py b/fingerprint_pro_server_api_sdk/models/error.py
index 033f5090..5f323177 100644
--- a/fingerprint_pro_server_api_sdk/models/error.py
+++ b/fingerprint_pro_server_api_sdk/models/error.py
@@ -33,6 +33,11 @@ class Error(BaseModel):
         'message': 'str'
     }
 
+    nullable_map = {
+        'code': False,
+        'message': False
+    }
+
     attribute_map = {
         'code': 'code',
         'message': 'message'
diff --git a/fingerprint_pro_server_api_sdk/models/error_code.py b/fingerprint_pro_server_api_sdk/models/error_code.py
index ae8f1a2b..6e105b07 100644
--- a/fingerprint_pro_server_api_sdk/models/error_code.py
+++ b/fingerprint_pro_server_api_sdk/models/error_code.py
@@ -49,6 +49,9 @@ class ErrorCode(BaseModel):
     swagger_types = {
     }
 
+    nullable_map = {
+    }
+
     attribute_map = {
     }
 
diff --git a/fingerprint_pro_server_api_sdk/models/error_response.py b/fingerprint_pro_server_api_sdk/models/error_response.py
index b952d798..7f88a4a7 100644
--- a/fingerprint_pro_server_api_sdk/models/error_response.py
+++ b/fingerprint_pro_server_api_sdk/models/error_response.py
@@ -32,6 +32,10 @@ class ErrorResponse(BaseModel):
         'error': 'Error'
     }
 
+    nullable_map = {
+        'error': False
+    }
+
     attribute_map = {
         'error': 'error'
     }
diff --git a/fingerprint_pro_server_api_sdk/models/events_get_response.py b/fingerprint_pro_server_api_sdk/models/events_get_response.py
index 3cd82c84..2988c404 100644
--- a/fingerprint_pro_server_api_sdk/models/events_get_response.py
+++ b/fingerprint_pro_server_api_sdk/models/events_get_response.py
@@ -35,6 +35,10 @@ class EventsGetResponse(BaseModel):
         'products': 'Products'
     }
 
+    nullable_map = {
+        'products': False
+    }
+
     attribute_map = {
         'products': 'products'
     }
diff --git a/fingerprint_pro_server_api_sdk/models/events_update_request.py b/fingerprint_pro_server_api_sdk/models/events_update_request.py
index e397b901..f0e63649 100644
--- a/fingerprint_pro_server_api_sdk/models/events_update_request.py
+++ b/fingerprint_pro_server_api_sdk/models/events_update_request.py
@@ -34,6 +34,12 @@ class EventsUpdateRequest(BaseModel):
         'suspect': 'bool'
     }
 
+    nullable_map = {
+        'linked_id': False,
+        'tag': False,
+        'suspect': False
+    }
+
     attribute_map = {
         'linked_id': 'linkedId',
         'tag': 'tag',
diff --git a/fingerprint_pro_server_api_sdk/models/factory_reset.py b/fingerprint_pro_server_api_sdk/models/factory_reset.py
index 4e11f4f8..6f908650 100644
--- a/fingerprint_pro_server_api_sdk/models/factory_reset.py
+++ b/fingerprint_pro_server_api_sdk/models/factory_reset.py
@@ -33,6 +33,11 @@ class FactoryReset(BaseModel):
         'timestamp': 'int'
     }
 
+    nullable_map = {
+        'time': False,
+        'timestamp': False
+    }
+
     attribute_map = {
         'time': 'time',
         'timestamp': 'timestamp'
diff --git a/fingerprint_pro_server_api_sdk/models/frida.py b/fingerprint_pro_server_api_sdk/models/frida.py
index b1aedca9..04fb841c 100644
--- a/fingerprint_pro_server_api_sdk/models/frida.py
+++ b/fingerprint_pro_server_api_sdk/models/frida.py
@@ -31,6 +31,10 @@ class Frida(BaseModel):
         'result': 'bool'
     }
 
+    nullable_map = {
+        'result': False
+    }
+
     attribute_map = {
         'result': 'result'
     }
diff --git a/fingerprint_pro_server_api_sdk/models/geolocation.py b/fingerprint_pro_server_api_sdk/models/geolocation.py
index 45995968..7b641c92 100644
--- a/fingerprint_pro_server_api_sdk/models/geolocation.py
+++ b/fingerprint_pro_server_api_sdk/models/geolocation.py
@@ -43,6 +43,18 @@ class Geolocation(BaseModel):
         'subdivisions': 'GeolocationSubdivisions'
     }
 
+    nullable_map = {
+        'accuracy_radius': False,
+        'latitude': False,
+        'longitude': False,
+        'postal_code': False,
+        'timezone': False,
+        'city': False,
+        'country': False,
+        'continent': False,
+        'subdivisions': False
+    }
+
     attribute_map = {
         'accuracy_radius': 'accuracyRadius',
         'latitude': 'latitude',
diff --git a/fingerprint_pro_server_api_sdk/models/geolocation_city.py b/fingerprint_pro_server_api_sdk/models/geolocation_city.py
index 5fe5af2d..d15046e5 100644
--- a/fingerprint_pro_server_api_sdk/models/geolocation_city.py
+++ b/fingerprint_pro_server_api_sdk/models/geolocation_city.py
@@ -31,6 +31,10 @@ class GeolocationCity(BaseModel):
         'name': 'str'
     }
 
+    nullable_map = {
+        'name': False
+    }
+
     attribute_map = {
         'name': 'name'
     }
diff --git a/fingerprint_pro_server_api_sdk/models/geolocation_continent.py b/fingerprint_pro_server_api_sdk/models/geolocation_continent.py
index 64888787..45777614 100644
--- a/fingerprint_pro_server_api_sdk/models/geolocation_continent.py
+++ b/fingerprint_pro_server_api_sdk/models/geolocation_continent.py
@@ -32,6 +32,11 @@ class GeolocationContinent(BaseModel):
         'name': 'str'
     }
 
+    nullable_map = {
+        'code': False,
+        'name': False
+    }
+
     attribute_map = {
         'code': 'code',
         'name': 'name'
diff --git a/fingerprint_pro_server_api_sdk/models/geolocation_country.py b/fingerprint_pro_server_api_sdk/models/geolocation_country.py
index bbfb5bbb..2f780f82 100644
--- a/fingerprint_pro_server_api_sdk/models/geolocation_country.py
+++ b/fingerprint_pro_server_api_sdk/models/geolocation_country.py
@@ -32,6 +32,11 @@ class GeolocationCountry(BaseModel):
         'name': 'str'
     }
 
+    nullable_map = {
+        'code': False,
+        'name': False
+    }
+
     attribute_map = {
         'code': 'code',
         'name': 'name'
diff --git a/fingerprint_pro_server_api_sdk/models/geolocation_subdivision.py b/fingerprint_pro_server_api_sdk/models/geolocation_subdivision.py
index 7a6c99cd..1a65c716 100644
--- a/fingerprint_pro_server_api_sdk/models/geolocation_subdivision.py
+++ b/fingerprint_pro_server_api_sdk/models/geolocation_subdivision.py
@@ -32,6 +32,11 @@ class GeolocationSubdivision(BaseModel):
         'name': 'str'
     }
 
+    nullable_map = {
+        'iso_code': False,
+        'name': False
+    }
+
     attribute_map = {
         'iso_code': 'isoCode',
         'name': 'name'
diff --git a/fingerprint_pro_server_api_sdk/models/geolocation_subdivisions.py b/fingerprint_pro_server_api_sdk/models/geolocation_subdivisions.py
index 9573e33e..cf8d64ff 100644
--- a/fingerprint_pro_server_api_sdk/models/geolocation_subdivisions.py
+++ b/fingerprint_pro_server_api_sdk/models/geolocation_subdivisions.py
@@ -30,6 +30,9 @@ class GeolocationSubdivisions(BaseModel):
     swagger_types = {
     }
 
+    nullable_map = {
+    }
+
     attribute_map = {
     }
 
diff --git a/fingerprint_pro_server_api_sdk/models/high_activity.py b/fingerprint_pro_server_api_sdk/models/high_activity.py
index d6559ee3..95449995 100644
--- a/fingerprint_pro_server_api_sdk/models/high_activity.py
+++ b/fingerprint_pro_server_api_sdk/models/high_activity.py
@@ -32,6 +32,11 @@ class HighActivity(BaseModel):
         'daily_requests': 'int'
     }
 
+    nullable_map = {
+        'result': False,
+        'daily_requests': False
+    }
+
     attribute_map = {
         'result': 'result',
         'daily_requests': 'dailyRequests'
diff --git a/fingerprint_pro_server_api_sdk/models/identification.py b/fingerprint_pro_server_api_sdk/models/identification.py
index 370fbbda..c296aa2a 100644
--- a/fingerprint_pro_server_api_sdk/models/identification.py
+++ b/fingerprint_pro_server_api_sdk/models/identification.py
@@ -55,6 +55,26 @@ class Identification(BaseModel):
         'components': 'RawDeviceAttributes'
     }
 
+    nullable_map = {
+        'visitor_id': False,
+        'request_id': False,
+        'browser_details': False,
+        'incognito': False,
+        'ip': False,
+        'ip_location': False,
+        'linked_id': False,
+        'suspect': False,
+        'timestamp': False,
+        'time': False,
+        'url': False,
+        'tag': False,
+        'confidence': False,
+        'visitor_found': False,
+        'first_seen_at': False,
+        'last_seen_at': False,
+        'components': False
+    }
+
     attribute_map = {
         'visitor_id': 'visitorId',
         'request_id': 'requestId',
diff --git a/fingerprint_pro_server_api_sdk/models/identification_confidence.py b/fingerprint_pro_server_api_sdk/models/identification_confidence.py
index 060d88b1..0867bac1 100644
--- a/fingerprint_pro_server_api_sdk/models/identification_confidence.py
+++ b/fingerprint_pro_server_api_sdk/models/identification_confidence.py
@@ -33,6 +33,12 @@ class IdentificationConfidence(BaseModel):
         'comment': 'str'
     }
 
+    nullable_map = {
+        'score': False,
+        'revision': False,
+        'comment': False
+    }
+
     attribute_map = {
         'score': 'score',
         'revision': 'revision',
diff --git a/fingerprint_pro_server_api_sdk/models/identification_seen_at.py b/fingerprint_pro_server_api_sdk/models/identification_seen_at.py
index 8c5bcc6a..98f60d3c 100644
--- a/fingerprint_pro_server_api_sdk/models/identification_seen_at.py
+++ b/fingerprint_pro_server_api_sdk/models/identification_seen_at.py
@@ -34,6 +34,11 @@ class IdentificationSeenAt(BaseModel):
         'subscription': 'datetime'
     }
 
+    nullable_map = {
+        '_global': True,
+        'subscription': True
+    }
+
     attribute_map = {
         '_global': 'global',
         'subscription': 'subscription'
diff --git a/fingerprint_pro_server_api_sdk/models/incognito.py b/fingerprint_pro_server_api_sdk/models/incognito.py
index 14ded3ec..0611720e 100644
--- a/fingerprint_pro_server_api_sdk/models/incognito.py
+++ b/fingerprint_pro_server_api_sdk/models/incognito.py
@@ -31,6 +31,10 @@ class Incognito(BaseModel):
         'result': 'bool'
     }
 
+    nullable_map = {
+        'result': False
+    }
+
     attribute_map = {
         'result': 'result'
     }
diff --git a/fingerprint_pro_server_api_sdk/models/ip_blocklist.py b/fingerprint_pro_server_api_sdk/models/ip_blocklist.py
index 978c3f3c..cfb31a95 100644
--- a/fingerprint_pro_server_api_sdk/models/ip_blocklist.py
+++ b/fingerprint_pro_server_api_sdk/models/ip_blocklist.py
@@ -33,6 +33,11 @@ class IPBlocklist(BaseModel):
         'details': 'IPBlocklistDetails'
     }
 
+    nullable_map = {
+        'result': False,
+        'details': False
+    }
+
     attribute_map = {
         'result': 'result',
         'details': 'details'
diff --git a/fingerprint_pro_server_api_sdk/models/ip_blocklist_details.py b/fingerprint_pro_server_api_sdk/models/ip_blocklist_details.py
index a2558892..e469dc0f 100644
--- a/fingerprint_pro_server_api_sdk/models/ip_blocklist_details.py
+++ b/fingerprint_pro_server_api_sdk/models/ip_blocklist_details.py
@@ -32,6 +32,11 @@ class IPBlocklistDetails(BaseModel):
         'attack_source': 'bool'
     }
 
+    nullable_map = {
+        'email_spam': False,
+        'attack_source': False
+    }
+
     attribute_map = {
         'email_spam': 'emailSpam',
         'attack_source': 'attackSource'
diff --git a/fingerprint_pro_server_api_sdk/models/ip_info.py b/fingerprint_pro_server_api_sdk/models/ip_info.py
index 0cc8ba9e..de3ae56f 100644
--- a/fingerprint_pro_server_api_sdk/models/ip_info.py
+++ b/fingerprint_pro_server_api_sdk/models/ip_info.py
@@ -37,6 +37,11 @@ class IPInfo(BaseModel):
         'v6': 'IPInfoV6'
     }
 
+    nullable_map = {
+        'v4': False,
+        'v6': False
+    }
+
     attribute_map = {
         'v4': 'v4',
         'v6': 'v6'
diff --git a/fingerprint_pro_server_api_sdk/models/ip_info_asn.py b/fingerprint_pro_server_api_sdk/models/ip_info_asn.py
index e7f5561f..f1eafa41 100644
--- a/fingerprint_pro_server_api_sdk/models/ip_info_asn.py
+++ b/fingerprint_pro_server_api_sdk/models/ip_info_asn.py
@@ -33,6 +33,12 @@ class IPInfoASN(BaseModel):
         'network': 'str'
     }
 
+    nullable_map = {
+        'asn': False,
+        'name': False,
+        'network': False
+    }
+
     attribute_map = {
         'asn': 'asn',
         'name': 'name',
diff --git a/fingerprint_pro_server_api_sdk/models/ip_info_data_center.py b/fingerprint_pro_server_api_sdk/models/ip_info_data_center.py
index 0de738c2..748689b1 100644
--- a/fingerprint_pro_server_api_sdk/models/ip_info_data_center.py
+++ b/fingerprint_pro_server_api_sdk/models/ip_info_data_center.py
@@ -32,6 +32,11 @@ class IPInfoDataCenter(BaseModel):
         'name': 'str'
     }
 
+    nullable_map = {
+        'result': False,
+        'name': False
+    }
+
     attribute_map = {
         'result': 'result',
         'name': 'name'
diff --git a/fingerprint_pro_server_api_sdk/models/ip_info_v4.py b/fingerprint_pro_server_api_sdk/models/ip_info_v4.py
index 72cd3b2b..d7db0ca2 100644
--- a/fingerprint_pro_server_api_sdk/models/ip_info_v4.py
+++ b/fingerprint_pro_server_api_sdk/models/ip_info_v4.py
@@ -37,6 +37,13 @@ class IPInfoV4(BaseModel):
         'datacenter': 'IPInfoDataCenter'
     }
 
+    nullable_map = {
+        'address': False,
+        'geolocation': False,
+        'asn': False,
+        'datacenter': False
+    }
+
     attribute_map = {
         'address': 'address',
         'geolocation': 'geolocation',
diff --git a/fingerprint_pro_server_api_sdk/models/ip_info_v6.py b/fingerprint_pro_server_api_sdk/models/ip_info_v6.py
index 21e6c337..86864ad0 100644
--- a/fingerprint_pro_server_api_sdk/models/ip_info_v6.py
+++ b/fingerprint_pro_server_api_sdk/models/ip_info_v6.py
@@ -37,6 +37,13 @@ class IPInfoV6(BaseModel):
         'datacenter': 'IPInfoDataCenter'
     }
 
+    nullable_map = {
+        'address': False,
+        'geolocation': False,
+        'asn': False,
+        'datacenter': False
+    }
+
     attribute_map = {
         'address': 'address',
         'geolocation': 'geolocation',
diff --git a/fingerprint_pro_server_api_sdk/models/jailbroken.py b/fingerprint_pro_server_api_sdk/models/jailbroken.py
index 35219ac9..40338aa1 100644
--- a/fingerprint_pro_server_api_sdk/models/jailbroken.py
+++ b/fingerprint_pro_server_api_sdk/models/jailbroken.py
@@ -31,6 +31,10 @@ class Jailbroken(BaseModel):
         'result': 'bool'
     }
 
+    nullable_map = {
+        'result': False
+    }
+
     attribute_map = {
         'result': 'result'
     }
diff --git a/fingerprint_pro_server_api_sdk/models/location_spoofing.py b/fingerprint_pro_server_api_sdk/models/location_spoofing.py
index dc332814..3ebad167 100644
--- a/fingerprint_pro_server_api_sdk/models/location_spoofing.py
+++ b/fingerprint_pro_server_api_sdk/models/location_spoofing.py
@@ -31,6 +31,10 @@ class LocationSpoofing(BaseModel):
         'result': 'bool'
     }
 
+    nullable_map = {
+        'result': False
+    }
+
     attribute_map = {
         'result': 'result'
     }
diff --git a/fingerprint_pro_server_api_sdk/models/privacy_settings.py b/fingerprint_pro_server_api_sdk/models/privacy_settings.py
index be1a30e6..9a7e3fbf 100644
--- a/fingerprint_pro_server_api_sdk/models/privacy_settings.py
+++ b/fingerprint_pro_server_api_sdk/models/privacy_settings.py
@@ -31,6 +31,10 @@ class PrivacySettings(BaseModel):
         'result': 'bool'
     }
 
+    nullable_map = {
+        'result': False
+    }
+
     attribute_map = {
         'result': 'result'
     }
diff --git a/fingerprint_pro_server_api_sdk/models/product_botd.py b/fingerprint_pro_server_api_sdk/models/product_botd.py
index 71f34246..862496a2 100644
--- a/fingerprint_pro_server_api_sdk/models/product_botd.py
+++ b/fingerprint_pro_server_api_sdk/models/product_botd.py
@@ -34,6 +34,11 @@ class ProductBotd(BaseModel):
         'error': 'Error'
     }
 
+    nullable_map = {
+        'data': False,
+        'error': False
+    }
+
     attribute_map = {
         'data': 'data',
         'error': 'error'
diff --git a/fingerprint_pro_server_api_sdk/models/product_cloned_app.py b/fingerprint_pro_server_api_sdk/models/product_cloned_app.py
index 90b0b989..cd98b93e 100644
--- a/fingerprint_pro_server_api_sdk/models/product_cloned_app.py
+++ b/fingerprint_pro_server_api_sdk/models/product_cloned_app.py
@@ -34,6 +34,11 @@ class ProductClonedApp(BaseModel):
         'error': 'Error'
     }
 
+    nullable_map = {
+        'data': False,
+        'error': False
+    }
+
     attribute_map = {
         'data': 'data',
         'error': 'error'
diff --git a/fingerprint_pro_server_api_sdk/models/product_developer_tools.py b/fingerprint_pro_server_api_sdk/models/product_developer_tools.py
index 961c64b8..1cd65e04 100644
--- a/fingerprint_pro_server_api_sdk/models/product_developer_tools.py
+++ b/fingerprint_pro_server_api_sdk/models/product_developer_tools.py
@@ -34,6 +34,11 @@ class ProductDeveloperTools(BaseModel):
         'error': 'Error'
     }
 
+    nullable_map = {
+        'data': False,
+        'error': False
+    }
+
     attribute_map = {
         'data': 'data',
         'error': 'error'
diff --git a/fingerprint_pro_server_api_sdk/models/product_emulator.py b/fingerprint_pro_server_api_sdk/models/product_emulator.py
index 5308fe83..1349c462 100644
--- a/fingerprint_pro_server_api_sdk/models/product_emulator.py
+++ b/fingerprint_pro_server_api_sdk/models/product_emulator.py
@@ -34,6 +34,11 @@ class ProductEmulator(BaseModel):
         'error': 'Error'
     }
 
+    nullable_map = {
+        'data': False,
+        'error': False
+    }
+
     attribute_map = {
         'data': 'data',
         'error': 'error'
diff --git a/fingerprint_pro_server_api_sdk/models/product_factory_reset.py b/fingerprint_pro_server_api_sdk/models/product_factory_reset.py
index a705bab6..7af95329 100644
--- a/fingerprint_pro_server_api_sdk/models/product_factory_reset.py
+++ b/fingerprint_pro_server_api_sdk/models/product_factory_reset.py
@@ -34,6 +34,11 @@ class ProductFactoryReset(BaseModel):
         'error': 'Error'
     }
 
+    nullable_map = {
+        'data': False,
+        'error': False
+    }
+
     attribute_map = {
         'data': 'data',
         'error': 'error'
diff --git a/fingerprint_pro_server_api_sdk/models/product_frida.py b/fingerprint_pro_server_api_sdk/models/product_frida.py
index 26c2a0d1..0862c0ee 100644
--- a/fingerprint_pro_server_api_sdk/models/product_frida.py
+++ b/fingerprint_pro_server_api_sdk/models/product_frida.py
@@ -34,6 +34,11 @@ class ProductFrida(BaseModel):
         'error': 'Error'
     }
 
+    nullable_map = {
+        'data': False,
+        'error': False
+    }
+
     attribute_map = {
         'data': 'data',
         'error': 'error'
diff --git a/fingerprint_pro_server_api_sdk/models/product_high_activity.py b/fingerprint_pro_server_api_sdk/models/product_high_activity.py
index f937fc75..e8f2dc81 100644
--- a/fingerprint_pro_server_api_sdk/models/product_high_activity.py
+++ b/fingerprint_pro_server_api_sdk/models/product_high_activity.py
@@ -34,6 +34,11 @@ class ProductHighActivity(BaseModel):
         'error': 'Error'
     }
 
+    nullable_map = {
+        'data': False,
+        'error': False
+    }
+
     attribute_map = {
         'data': 'data',
         'error': 'error'
diff --git a/fingerprint_pro_server_api_sdk/models/product_identification.py b/fingerprint_pro_server_api_sdk/models/product_identification.py
index f5ae4621..de0b4dda 100644
--- a/fingerprint_pro_server_api_sdk/models/product_identification.py
+++ b/fingerprint_pro_server_api_sdk/models/product_identification.py
@@ -34,6 +34,11 @@ class ProductIdentification(BaseModel):
         'error': 'Error'
     }
 
+    nullable_map = {
+        'data': False,
+        'error': False
+    }
+
     attribute_map = {
         'data': 'data',
         'error': 'error'
diff --git a/fingerprint_pro_server_api_sdk/models/product_incognito.py b/fingerprint_pro_server_api_sdk/models/product_incognito.py
index 948720c6..461ee1b8 100644
--- a/fingerprint_pro_server_api_sdk/models/product_incognito.py
+++ b/fingerprint_pro_server_api_sdk/models/product_incognito.py
@@ -34,6 +34,11 @@ class ProductIncognito(BaseModel):
         'error': 'Error'
     }
 
+    nullable_map = {
+        'data': False,
+        'error': False
+    }
+
     attribute_map = {
         'data': 'data',
         'error': 'error'
diff --git a/fingerprint_pro_server_api_sdk/models/product_ip_blocklist.py b/fingerprint_pro_server_api_sdk/models/product_ip_blocklist.py
index c1edae88..0e3df50c 100644
--- a/fingerprint_pro_server_api_sdk/models/product_ip_blocklist.py
+++ b/fingerprint_pro_server_api_sdk/models/product_ip_blocklist.py
@@ -34,6 +34,11 @@ class ProductIPBlocklist(BaseModel):
         'error': 'Error'
     }
 
+    nullable_map = {
+        'data': False,
+        'error': False
+    }
+
     attribute_map = {
         'data': 'data',
         'error': 'error'
diff --git a/fingerprint_pro_server_api_sdk/models/product_ip_info.py b/fingerprint_pro_server_api_sdk/models/product_ip_info.py
index 94be65d0..863bb030 100644
--- a/fingerprint_pro_server_api_sdk/models/product_ip_info.py
+++ b/fingerprint_pro_server_api_sdk/models/product_ip_info.py
@@ -34,6 +34,11 @@ class ProductIPInfo(BaseModel):
         'error': 'Error'
     }
 
+    nullable_map = {
+        'data': False,
+        'error': False
+    }
+
     attribute_map = {
         'data': 'data',
         'error': 'error'
diff --git a/fingerprint_pro_server_api_sdk/models/product_jailbroken.py b/fingerprint_pro_server_api_sdk/models/product_jailbroken.py
index fef2c956..393b4e32 100644
--- a/fingerprint_pro_server_api_sdk/models/product_jailbroken.py
+++ b/fingerprint_pro_server_api_sdk/models/product_jailbroken.py
@@ -34,6 +34,11 @@ class ProductJailbroken(BaseModel):
         'error': 'Error'
     }
 
+    nullable_map = {
+        'data': False,
+        'error': False
+    }
+
     attribute_map = {
         'data': 'data',
         'error': 'error'
diff --git a/fingerprint_pro_server_api_sdk/models/product_location_spoofing.py b/fingerprint_pro_server_api_sdk/models/product_location_spoofing.py
index f5d12fac..740bebcc 100644
--- a/fingerprint_pro_server_api_sdk/models/product_location_spoofing.py
+++ b/fingerprint_pro_server_api_sdk/models/product_location_spoofing.py
@@ -34,6 +34,11 @@ class ProductLocationSpoofing(BaseModel):
         'error': 'Error'
     }
 
+    nullable_map = {
+        'data': False,
+        'error': False
+    }
+
     attribute_map = {
         'data': 'data',
         'error': 'error'
diff --git a/fingerprint_pro_server_api_sdk/models/product_privacy_settings.py b/fingerprint_pro_server_api_sdk/models/product_privacy_settings.py
index f3aaef79..b2b5984c 100644
--- a/fingerprint_pro_server_api_sdk/models/product_privacy_settings.py
+++ b/fingerprint_pro_server_api_sdk/models/product_privacy_settings.py
@@ -34,6 +34,11 @@ class ProductPrivacySettings(BaseModel):
         'error': 'Error'
     }
 
+    nullable_map = {
+        'data': False,
+        'error': False
+    }
+
     attribute_map = {
         'data': 'data',
         'error': 'error'
diff --git a/fingerprint_pro_server_api_sdk/models/product_proxy.py b/fingerprint_pro_server_api_sdk/models/product_proxy.py
index 85239399..a5867fab 100644
--- a/fingerprint_pro_server_api_sdk/models/product_proxy.py
+++ b/fingerprint_pro_server_api_sdk/models/product_proxy.py
@@ -34,6 +34,11 @@ class ProductProxy(BaseModel):
         'error': 'Error'
     }
 
+    nullable_map = {
+        'data': False,
+        'error': False
+    }
+
     attribute_map = {
         'data': 'data',
         'error': 'error'
diff --git a/fingerprint_pro_server_api_sdk/models/product_raw_device_attributes.py b/fingerprint_pro_server_api_sdk/models/product_raw_device_attributes.py
index ea84788d..6a9f94df 100644
--- a/fingerprint_pro_server_api_sdk/models/product_raw_device_attributes.py
+++ b/fingerprint_pro_server_api_sdk/models/product_raw_device_attributes.py
@@ -34,6 +34,11 @@ class ProductRawDeviceAttributes(BaseModel):
         'error': 'Error'
     }
 
+    nullable_map = {
+        'data': False,
+        'error': False
+    }
+
     attribute_map = {
         'data': 'data',
         'error': 'error'
diff --git a/fingerprint_pro_server_api_sdk/models/product_remote_control.py b/fingerprint_pro_server_api_sdk/models/product_remote_control.py
index d5f73d93..3a2eb63e 100644
--- a/fingerprint_pro_server_api_sdk/models/product_remote_control.py
+++ b/fingerprint_pro_server_api_sdk/models/product_remote_control.py
@@ -34,6 +34,11 @@ class ProductRemoteControl(BaseModel):
         'error': 'Error'
     }
 
+    nullable_map = {
+        'data': False,
+        'error': False
+    }
+
     attribute_map = {
         'data': 'data',
         'error': 'error'
diff --git a/fingerprint_pro_server_api_sdk/models/product_root_apps.py b/fingerprint_pro_server_api_sdk/models/product_root_apps.py
index be6726cc..d3e5cc86 100644
--- a/fingerprint_pro_server_api_sdk/models/product_root_apps.py
+++ b/fingerprint_pro_server_api_sdk/models/product_root_apps.py
@@ -34,6 +34,11 @@ class ProductRootApps(BaseModel):
         'error': 'Error'
     }
 
+    nullable_map = {
+        'data': False,
+        'error': False
+    }
+
     attribute_map = {
         'data': 'data',
         'error': 'error'
diff --git a/fingerprint_pro_server_api_sdk/models/product_suspect_score.py b/fingerprint_pro_server_api_sdk/models/product_suspect_score.py
index 77af729a..de6910b5 100644
--- a/fingerprint_pro_server_api_sdk/models/product_suspect_score.py
+++ b/fingerprint_pro_server_api_sdk/models/product_suspect_score.py
@@ -34,6 +34,11 @@ class ProductSuspectScore(BaseModel):
         'error': 'Error'
     }
 
+    nullable_map = {
+        'data': False,
+        'error': False
+    }
+
     attribute_map = {
         'data': 'data',
         'error': 'error'
diff --git a/fingerprint_pro_server_api_sdk/models/product_tampering.py b/fingerprint_pro_server_api_sdk/models/product_tampering.py
index b02620eb..828d15b0 100644
--- a/fingerprint_pro_server_api_sdk/models/product_tampering.py
+++ b/fingerprint_pro_server_api_sdk/models/product_tampering.py
@@ -34,6 +34,11 @@ class ProductTampering(BaseModel):
         'error': 'Error'
     }
 
+    nullable_map = {
+        'data': False,
+        'error': False
+    }
+
     attribute_map = {
         'data': 'data',
         'error': 'error'
diff --git a/fingerprint_pro_server_api_sdk/models/product_tor.py b/fingerprint_pro_server_api_sdk/models/product_tor.py
index cb683825..ae89d9e8 100644
--- a/fingerprint_pro_server_api_sdk/models/product_tor.py
+++ b/fingerprint_pro_server_api_sdk/models/product_tor.py
@@ -34,6 +34,11 @@ class ProductTor(BaseModel):
         'error': 'Error'
     }
 
+    nullable_map = {
+        'data': False,
+        'error': False
+    }
+
     attribute_map = {
         'data': 'data',
         'error': 'error'
diff --git a/fingerprint_pro_server_api_sdk/models/product_velocity.py b/fingerprint_pro_server_api_sdk/models/product_velocity.py
index 7a572b3a..46a633b6 100644
--- a/fingerprint_pro_server_api_sdk/models/product_velocity.py
+++ b/fingerprint_pro_server_api_sdk/models/product_velocity.py
@@ -34,6 +34,11 @@ class ProductVelocity(BaseModel):
         'error': 'Error'
     }
 
+    nullable_map = {
+        'data': False,
+        'error': False
+    }
+
     attribute_map = {
         'data': 'data',
         'error': 'error'
diff --git a/fingerprint_pro_server_api_sdk/models/product_virtual_machine.py b/fingerprint_pro_server_api_sdk/models/product_virtual_machine.py
index fbb622b4..ec55e77d 100644
--- a/fingerprint_pro_server_api_sdk/models/product_virtual_machine.py
+++ b/fingerprint_pro_server_api_sdk/models/product_virtual_machine.py
@@ -34,6 +34,11 @@ class ProductVirtualMachine(BaseModel):
         'error': 'Error'
     }
 
+    nullable_map = {
+        'data': False,
+        'error': False
+    }
+
     attribute_map = {
         'data': 'data',
         'error': 'error'
diff --git a/fingerprint_pro_server_api_sdk/models/product_vpn.py b/fingerprint_pro_server_api_sdk/models/product_vpn.py
index 04d07d1b..5ef9e9e9 100644
--- a/fingerprint_pro_server_api_sdk/models/product_vpn.py
+++ b/fingerprint_pro_server_api_sdk/models/product_vpn.py
@@ -34,6 +34,11 @@ class ProductVPN(BaseModel):
         'error': 'Error'
     }
 
+    nullable_map = {
+        'data': False,
+        'error': False
+    }
+
     attribute_map = {
         'data': 'data',
         'error': 'error'
diff --git a/fingerprint_pro_server_api_sdk/models/products.py b/fingerprint_pro_server_api_sdk/models/products.py
index 3ef4d259..2ec11401 100644
--- a/fingerprint_pro_server_api_sdk/models/products.py
+++ b/fingerprint_pro_server_api_sdk/models/products.py
@@ -81,6 +81,33 @@ class Products(BaseModel):
         'developer_tools': 'ProductDeveloperTools'
     }
 
+    nullable_map = {
+        'identification': False,
+        'botd': False,
+        'root_apps': False,
+        'emulator': False,
+        'ip_info': False,
+        'ip_blocklist': False,
+        'tor': False,
+        'vpn': False,
+        'proxy': False,
+        'incognito': False,
+        'tampering': False,
+        'cloned_app': False,
+        'factory_reset': False,
+        'jailbroken': False,
+        'frida': False,
+        'privacy_settings': False,
+        'virtual_machine': False,
+        'raw_device_attributes': False,
+        'high_activity': False,
+        'location_spoofing': False,
+        'suspect_score': False,
+        'remote_control': False,
+        'velocity': False,
+        'developer_tools': False
+    }
+
     attribute_map = {
         'identification': 'identification',
         'botd': 'botd',
diff --git a/fingerprint_pro_server_api_sdk/models/proxy.py b/fingerprint_pro_server_api_sdk/models/proxy.py
index b49e0a23..0380d1ae 100644
--- a/fingerprint_pro_server_api_sdk/models/proxy.py
+++ b/fingerprint_pro_server_api_sdk/models/proxy.py
@@ -31,6 +31,10 @@ class Proxy(BaseModel):
         'result': 'bool'
     }
 
+    nullable_map = {
+        'result': False
+    }
+
     attribute_map = {
         'result': 'result'
     }
diff --git a/fingerprint_pro_server_api_sdk/models/raw_device_attribute.py b/fingerprint_pro_server_api_sdk/models/raw_device_attribute.py
index 60ec25da..ff5dc109 100644
--- a/fingerprint_pro_server_api_sdk/models/raw_device_attribute.py
+++ b/fingerprint_pro_server_api_sdk/models/raw_device_attribute.py
@@ -33,6 +33,11 @@ class RawDeviceAttribute(BaseModel):
         'error': 'RawDeviceAttributeError'
     }
 
+    nullable_map = {
+        'value': False,
+        'error': False
+    }
+
     attribute_map = {
         'value': 'value',
         'error': 'error'
diff --git a/fingerprint_pro_server_api_sdk/models/raw_device_attribute_error.py b/fingerprint_pro_server_api_sdk/models/raw_device_attribute_error.py
index 1eb17b94..4d954e73 100644
--- a/fingerprint_pro_server_api_sdk/models/raw_device_attribute_error.py
+++ b/fingerprint_pro_server_api_sdk/models/raw_device_attribute_error.py
@@ -32,6 +32,11 @@ class RawDeviceAttributeError(BaseModel):
         'message': 'str'
     }
 
+    nullable_map = {
+        'name': False,
+        'message': False
+    }
+
     attribute_map = {
         'name': 'name',
         'message': 'message'
diff --git a/fingerprint_pro_server_api_sdk/models/raw_device_attributes.py b/fingerprint_pro_server_api_sdk/models/raw_device_attributes.py
index 163fdc41..0401d7c6 100644
--- a/fingerprint_pro_server_api_sdk/models/raw_device_attributes.py
+++ b/fingerprint_pro_server_api_sdk/models/raw_device_attributes.py
@@ -33,6 +33,9 @@ class RawDeviceAttributes(dict):
     swagger_types = {
     }
 
+    nullable_map = {
+    }
+
     attribute_map = {
     }
 
diff --git a/fingerprint_pro_server_api_sdk/models/related_visitor.py b/fingerprint_pro_server_api_sdk/models/related_visitor.py
index 0b8cc0ef..8caa29a6 100644
--- a/fingerprint_pro_server_api_sdk/models/related_visitor.py
+++ b/fingerprint_pro_server_api_sdk/models/related_visitor.py
@@ -31,6 +31,10 @@ class RelatedVisitor(BaseModel):
         'visitor_id': 'str'
     }
 
+    nullable_map = {
+        'visitor_id': False
+    }
+
     attribute_map = {
         'visitor_id': 'visitorId'
     }
diff --git a/fingerprint_pro_server_api_sdk/models/related_visitors_response.py b/fingerprint_pro_server_api_sdk/models/related_visitors_response.py
index 75c31004..8bd0bcc4 100644
--- a/fingerprint_pro_server_api_sdk/models/related_visitors_response.py
+++ b/fingerprint_pro_server_api_sdk/models/related_visitors_response.py
@@ -32,6 +32,10 @@ class RelatedVisitorsResponse(BaseModel):
         'related_visitors': 'list[RelatedVisitor]'
     }
 
+    nullable_map = {
+        'related_visitors': False
+    }
+
     attribute_map = {
         'related_visitors': 'relatedVisitors'
     }
diff --git a/fingerprint_pro_server_api_sdk/models/remote_control.py b/fingerprint_pro_server_api_sdk/models/remote_control.py
index dc9f8022..7e94872d 100644
--- a/fingerprint_pro_server_api_sdk/models/remote_control.py
+++ b/fingerprint_pro_server_api_sdk/models/remote_control.py
@@ -31,6 +31,10 @@ class RemoteControl(BaseModel):
         'result': 'bool'
     }
 
+    nullable_map = {
+        'result': False
+    }
+
     attribute_map = {
         'result': 'result'
     }
diff --git a/fingerprint_pro_server_api_sdk/models/root_apps.py b/fingerprint_pro_server_api_sdk/models/root_apps.py
index 8ffc78bb..879ac54c 100644
--- a/fingerprint_pro_server_api_sdk/models/root_apps.py
+++ b/fingerprint_pro_server_api_sdk/models/root_apps.py
@@ -31,6 +31,10 @@ class RootApps(BaseModel):
         'result': 'bool'
     }
 
+    nullable_map = {
+        'result': False
+    }
+
     attribute_map = {
         'result': 'result'
     }
diff --git a/fingerprint_pro_server_api_sdk/models/suspect_score.py b/fingerprint_pro_server_api_sdk/models/suspect_score.py
index c3b91662..854c54e8 100644
--- a/fingerprint_pro_server_api_sdk/models/suspect_score.py
+++ b/fingerprint_pro_server_api_sdk/models/suspect_score.py
@@ -31,6 +31,10 @@ class SuspectScore(BaseModel):
         'result': 'int'
     }
 
+    nullable_map = {
+        'result': False
+    }
+
     attribute_map = {
         'result': 'result'
     }
diff --git a/fingerprint_pro_server_api_sdk/models/tag.py b/fingerprint_pro_server_api_sdk/models/tag.py
index 05a4b4ce..3a5e0323 100644
--- a/fingerprint_pro_server_api_sdk/models/tag.py
+++ b/fingerprint_pro_server_api_sdk/models/tag.py
@@ -33,6 +33,9 @@ class Tag(dict):
     swagger_types = {
     }
 
+    nullable_map = {
+    }
+
     attribute_map = {
     }
 
diff --git a/fingerprint_pro_server_api_sdk/models/tampering.py b/fingerprint_pro_server_api_sdk/models/tampering.py
index a0c6c59f..5201994a 100644
--- a/fingerprint_pro_server_api_sdk/models/tampering.py
+++ b/fingerprint_pro_server_api_sdk/models/tampering.py
@@ -33,6 +33,12 @@ class Tampering(BaseModel):
         'anti_detect_browser': 'bool'
     }
 
+    nullable_map = {
+        'result': False,
+        'anomaly_score': False,
+        'anti_detect_browser': False
+    }
+
     attribute_map = {
         'result': 'result',
         'anomaly_score': 'anomalyScore',
diff --git a/fingerprint_pro_server_api_sdk/models/tor.py b/fingerprint_pro_server_api_sdk/models/tor.py
index 4e96a69f..59678e85 100644
--- a/fingerprint_pro_server_api_sdk/models/tor.py
+++ b/fingerprint_pro_server_api_sdk/models/tor.py
@@ -31,6 +31,10 @@ class Tor(BaseModel):
         'result': 'bool'
     }
 
+    nullable_map = {
+        'result': False
+    }
+
     attribute_map = {
         'result': 'result'
     }
diff --git a/fingerprint_pro_server_api_sdk/models/velocity.py b/fingerprint_pro_server_api_sdk/models/velocity.py
index 6c2d4f38..79e68f88 100644
--- a/fingerprint_pro_server_api_sdk/models/velocity.py
+++ b/fingerprint_pro_server_api_sdk/models/velocity.py
@@ -47,6 +47,16 @@ class Velocity(BaseModel):
         'distinct_visitor_id_by_linked_id': 'VelocityData'
     }
 
+    nullable_map = {
+        'distinct_ip': False,
+        'distinct_linked_id': False,
+        'distinct_country': False,
+        'events': False,
+        'ip_events': False,
+        'distinct_ip_by_linked_id': False,
+        'distinct_visitor_id_by_linked_id': False
+    }
+
     attribute_map = {
         'distinct_ip': 'distinctIp',
         'distinct_linked_id': 'distinctLinkedId',
diff --git a/fingerprint_pro_server_api_sdk/models/velocity_data.py b/fingerprint_pro_server_api_sdk/models/velocity_data.py
index e077e1b0..35e5c339 100644
--- a/fingerprint_pro_server_api_sdk/models/velocity_data.py
+++ b/fingerprint_pro_server_api_sdk/models/velocity_data.py
@@ -32,6 +32,10 @@ class VelocityData(BaseModel):
         'intervals': 'VelocityIntervals'
     }
 
+    nullable_map = {
+        'intervals': False
+    }
+
     attribute_map = {
         'intervals': 'intervals'
     }
diff --git a/fingerprint_pro_server_api_sdk/models/velocity_intervals.py b/fingerprint_pro_server_api_sdk/models/velocity_intervals.py
index 052f3b35..8a8a22c4 100644
--- a/fingerprint_pro_server_api_sdk/models/velocity_intervals.py
+++ b/fingerprint_pro_server_api_sdk/models/velocity_intervals.py
@@ -36,6 +36,12 @@ class VelocityIntervals(BaseModel):
         '_24h': 'int'
     }
 
+    nullable_map = {
+        '_5m': False,
+        '_1h': False,
+        '_24h': False
+    }
+
     attribute_map = {
         '_5m': '5m',
         '_1h': '1h',
diff --git a/fingerprint_pro_server_api_sdk/models/virtual_machine.py b/fingerprint_pro_server_api_sdk/models/virtual_machine.py
index 58c8db7f..c387d5ee 100644
--- a/fingerprint_pro_server_api_sdk/models/virtual_machine.py
+++ b/fingerprint_pro_server_api_sdk/models/virtual_machine.py
@@ -31,6 +31,10 @@ class VirtualMachine(BaseModel):
         'result': 'bool'
     }
 
+    nullable_map = {
+        'result': False
+    }
+
     attribute_map = {
         'result': 'result'
     }
diff --git a/fingerprint_pro_server_api_sdk/models/visit.py b/fingerprint_pro_server_api_sdk/models/visit.py
index 6d7c98ae..3b5cccb0 100644
--- a/fingerprint_pro_server_api_sdk/models/visit.py
+++ b/fingerprint_pro_server_api_sdk/models/visit.py
@@ -53,6 +53,24 @@ class Visit(BaseModel):
         'components': 'RawDeviceAttributes'
     }
 
+    nullable_map = {
+        'request_id': False,
+        'browser_details': False,
+        'incognito': False,
+        'ip': False,
+        'ip_location': False,
+        'linked_id': False,
+        'timestamp': False,
+        'time': False,
+        'url': False,
+        'tag': False,
+        'confidence': False,
+        'visitor_found': False,
+        'first_seen_at': False,
+        'last_seen_at': False,
+        'components': False
+    }
+
     attribute_map = {
         'request_id': 'requestId',
         'browser_details': 'browserDetails',
diff --git a/fingerprint_pro_server_api_sdk/models/visitors_get_response.py b/fingerprint_pro_server_api_sdk/models/visitors_get_response.py
index b25f55b0..039b42ba 100644
--- a/fingerprint_pro_server_api_sdk/models/visitors_get_response.py
+++ b/fingerprint_pro_server_api_sdk/models/visitors_get_response.py
@@ -38,6 +38,13 @@ class VisitorsGetResponse(BaseModel):
         'pagination_key': 'str'
     }
 
+    nullable_map = {
+        'visitor_id': False,
+        'visits': False,
+        'last_timestamp': False,
+        'pagination_key': False
+    }
+
     attribute_map = {
         'visitor_id': 'visitorId',
         'visits': 'visits',
diff --git a/fingerprint_pro_server_api_sdk/models/vpn.py b/fingerprint_pro_server_api_sdk/models/vpn.py
index 1d020140..64c3c784 100644
--- a/fingerprint_pro_server_api_sdk/models/vpn.py
+++ b/fingerprint_pro_server_api_sdk/models/vpn.py
@@ -37,6 +37,14 @@ class VPN(BaseModel):
         'methods': 'VPNMethods'
     }
 
+    nullable_map = {
+        'result': False,
+        'confidence': False,
+        'origin_timezone': False,
+        'origin_country': False,
+        'methods': False
+    }
+
     attribute_map = {
         'result': 'result',
         'confidence': 'confidence',
diff --git a/fingerprint_pro_server_api_sdk/models/vpn_confidence.py b/fingerprint_pro_server_api_sdk/models/vpn_confidence.py
index 8dda168a..2e410924 100644
--- a/fingerprint_pro_server_api_sdk/models/vpn_confidence.py
+++ b/fingerprint_pro_server_api_sdk/models/vpn_confidence.py
@@ -40,6 +40,9 @@ class VPNConfidence(BaseModel):
     swagger_types = {
     }
 
+    nullable_map = {
+    }
+
     attribute_map = {
     }
 
diff --git a/fingerprint_pro_server_api_sdk/models/vpn_methods.py b/fingerprint_pro_server_api_sdk/models/vpn_methods.py
index b5a8cdd4..54fb716a 100644
--- a/fingerprint_pro_server_api_sdk/models/vpn_methods.py
+++ b/fingerprint_pro_server_api_sdk/models/vpn_methods.py
@@ -35,6 +35,14 @@ class VPNMethods(BaseModel):
         'relay': 'bool'
     }
 
+    nullable_map = {
+        'timezone_mismatch': False,
+        'public_vpn': False,
+        'auxiliary_mobile': False,
+        'os_mismatch': False,
+        'relay': False
+    }
+
     attribute_map = {
         'timezone_mismatch': 'timezoneMismatch',
         'public_vpn': 'publicVPN',
diff --git a/fingerprint_pro_server_api_sdk/models/webhook.py b/fingerprint_pro_server_api_sdk/models/webhook.py
index 4f474a67..a1dfb853 100644
--- a/fingerprint_pro_server_api_sdk/models/webhook.py
+++ b/fingerprint_pro_server_api_sdk/models/webhook.py
@@ -100,6 +100,49 @@ class Webhook(BaseModel):
         'developer_tools': 'WebhookDeveloperTools'
     }
 
+    nullable_map = {
+        'request_id': False,
+        'url': False,
+        'ip': False,
+        'tag': False,
+        'time': False,
+        'timestamp': False,
+        'ip_location': False,
+        'linked_id': False,
+        'visitor_id': False,
+        'visitor_found': False,
+        'confidence': False,
+        'first_seen_at': False,
+        'last_seen_at': False,
+        'browser_details': False,
+        'incognito': False,
+        'client_referrer': False,
+        'components': False,
+        'bot': False,
+        'user_agent': False,
+        'root_apps': False,
+        'emulator': False,
+        'ip_info': False,
+        'ip_blocklist': False,
+        'tor': False,
+        'vpn': False,
+        'proxy': False,
+        'tampering': False,
+        'cloned_app': False,
+        'factory_reset': False,
+        'jailbroken': False,
+        'frida': False,
+        'privacy_settings': False,
+        'virtual_machine': False,
+        'raw_device_attributes': False,
+        'high_activity': False,
+        'location_spoofing': False,
+        'suspect_score': False,
+        'remote_control': False,
+        'velocity': False,
+        'developer_tools': False
+    }
+
     attribute_map = {
         'request_id': 'requestId',
         'url': 'url',
diff --git a/fingerprint_pro_server_api_sdk/models/webhook_cloned_app.py b/fingerprint_pro_server_api_sdk/models/webhook_cloned_app.py
index 2c2e83e5..f0096a83 100644
--- a/fingerprint_pro_server_api_sdk/models/webhook_cloned_app.py
+++ b/fingerprint_pro_server_api_sdk/models/webhook_cloned_app.py
@@ -31,6 +31,10 @@ class WebhookClonedApp(BaseModel):
         'result': 'bool'
     }
 
+    nullable_map = {
+        'result': False
+    }
+
     attribute_map = {
         'result': 'result'
     }
diff --git a/fingerprint_pro_server_api_sdk/models/webhook_developer_tools.py b/fingerprint_pro_server_api_sdk/models/webhook_developer_tools.py
index c75c0695..8759c6fc 100644
--- a/fingerprint_pro_server_api_sdk/models/webhook_developer_tools.py
+++ b/fingerprint_pro_server_api_sdk/models/webhook_developer_tools.py
@@ -31,6 +31,10 @@ class WebhookDeveloperTools(BaseModel):
         'result': 'bool'
     }
 
+    nullable_map = {
+        'result': False
+    }
+
     attribute_map = {
         'result': 'result'
     }
diff --git a/fingerprint_pro_server_api_sdk/models/webhook_emulator.py b/fingerprint_pro_server_api_sdk/models/webhook_emulator.py
index d997b7c2..b506655e 100644
--- a/fingerprint_pro_server_api_sdk/models/webhook_emulator.py
+++ b/fingerprint_pro_server_api_sdk/models/webhook_emulator.py
@@ -31,6 +31,10 @@ class WebhookEmulator(BaseModel):
         'result': 'bool'
     }
 
+    nullable_map = {
+        'result': False
+    }
+
     attribute_map = {
         'result': 'result'
     }
diff --git a/fingerprint_pro_server_api_sdk/models/webhook_factory_reset.py b/fingerprint_pro_server_api_sdk/models/webhook_factory_reset.py
index d0c874ed..df2ae611 100644
--- a/fingerprint_pro_server_api_sdk/models/webhook_factory_reset.py
+++ b/fingerprint_pro_server_api_sdk/models/webhook_factory_reset.py
@@ -33,6 +33,11 @@ class WebhookFactoryReset(BaseModel):
         'timestamp': 'int'
     }
 
+    nullable_map = {
+        'time': False,
+        'timestamp': False
+    }
+
     attribute_map = {
         'time': 'time',
         'timestamp': 'timestamp'
diff --git a/fingerprint_pro_server_api_sdk/models/webhook_frida.py b/fingerprint_pro_server_api_sdk/models/webhook_frida.py
index 31e65dcc..8de8c2b8 100644
--- a/fingerprint_pro_server_api_sdk/models/webhook_frida.py
+++ b/fingerprint_pro_server_api_sdk/models/webhook_frida.py
@@ -31,6 +31,10 @@ class WebhookFrida(BaseModel):
         'result': 'bool'
     }
 
+    nullable_map = {
+        'result': False
+    }
+
     attribute_map = {
         'result': 'result'
     }
diff --git a/fingerprint_pro_server_api_sdk/models/webhook_high_activity.py b/fingerprint_pro_server_api_sdk/models/webhook_high_activity.py
index be754e4c..0a19d2a5 100644
--- a/fingerprint_pro_server_api_sdk/models/webhook_high_activity.py
+++ b/fingerprint_pro_server_api_sdk/models/webhook_high_activity.py
@@ -32,6 +32,11 @@ class WebhookHighActivity(BaseModel):
         'daily_requests': 'int'
     }
 
+    nullable_map = {
+        'result': False,
+        'daily_requests': False
+    }
+
     attribute_map = {
         'result': 'result',
         'daily_requests': 'dailyRequests'
diff --git a/fingerprint_pro_server_api_sdk/models/webhook_ip_blocklist.py b/fingerprint_pro_server_api_sdk/models/webhook_ip_blocklist.py
index 86d2b68e..92854d34 100644
--- a/fingerprint_pro_server_api_sdk/models/webhook_ip_blocklist.py
+++ b/fingerprint_pro_server_api_sdk/models/webhook_ip_blocklist.py
@@ -33,6 +33,11 @@ class WebhookIPBlocklist(BaseModel):
         'details': 'IPBlocklistDetails'
     }
 
+    nullable_map = {
+        'result': False,
+        'details': False
+    }
+
     attribute_map = {
         'result': 'result',
         'details': 'details'
diff --git a/fingerprint_pro_server_api_sdk/models/webhook_ip_info.py b/fingerprint_pro_server_api_sdk/models/webhook_ip_info.py
index 33ad4479..f7da18c5 100644
--- a/fingerprint_pro_server_api_sdk/models/webhook_ip_info.py
+++ b/fingerprint_pro_server_api_sdk/models/webhook_ip_info.py
@@ -37,6 +37,11 @@ class WebhookIPInfo(BaseModel):
         'v6': 'IPInfoV6'
     }
 
+    nullable_map = {
+        'v4': False,
+        'v6': False
+    }
+
     attribute_map = {
         'v4': 'v4',
         'v6': 'v6'
diff --git a/fingerprint_pro_server_api_sdk/models/webhook_jailbroken.py b/fingerprint_pro_server_api_sdk/models/webhook_jailbroken.py
index 9af17442..fec77f9f 100644
--- a/fingerprint_pro_server_api_sdk/models/webhook_jailbroken.py
+++ b/fingerprint_pro_server_api_sdk/models/webhook_jailbroken.py
@@ -31,6 +31,10 @@ class WebhookJailbroken(BaseModel):
         'result': 'bool'
     }
 
+    nullable_map = {
+        'result': False
+    }
+
     attribute_map = {
         'result': 'result'
     }
diff --git a/fingerprint_pro_server_api_sdk/models/webhook_location_spoofing.py b/fingerprint_pro_server_api_sdk/models/webhook_location_spoofing.py
index a0a75d23..46addf22 100644
--- a/fingerprint_pro_server_api_sdk/models/webhook_location_spoofing.py
+++ b/fingerprint_pro_server_api_sdk/models/webhook_location_spoofing.py
@@ -31,6 +31,10 @@ class WebhookLocationSpoofing(BaseModel):
         'result': 'bool'
     }
 
+    nullable_map = {
+        'result': False
+    }
+
     attribute_map = {
         'result': 'result'
     }
diff --git a/fingerprint_pro_server_api_sdk/models/webhook_privacy_settings.py b/fingerprint_pro_server_api_sdk/models/webhook_privacy_settings.py
index 4a05f00b..060307cf 100644
--- a/fingerprint_pro_server_api_sdk/models/webhook_privacy_settings.py
+++ b/fingerprint_pro_server_api_sdk/models/webhook_privacy_settings.py
@@ -31,6 +31,10 @@ class WebhookPrivacySettings(BaseModel):
         'result': 'bool'
     }
 
+    nullable_map = {
+        'result': False
+    }
+
     attribute_map = {
         'result': 'result'
     }
diff --git a/fingerprint_pro_server_api_sdk/models/webhook_proxy.py b/fingerprint_pro_server_api_sdk/models/webhook_proxy.py
index f1147e52..5dbb1827 100644
--- a/fingerprint_pro_server_api_sdk/models/webhook_proxy.py
+++ b/fingerprint_pro_server_api_sdk/models/webhook_proxy.py
@@ -31,6 +31,10 @@ class WebhookProxy(BaseModel):
         'result': 'bool'
     }
 
+    nullable_map = {
+        'result': False
+    }
+
     attribute_map = {
         'result': 'result'
     }
diff --git a/fingerprint_pro_server_api_sdk/models/webhook_raw_device_attributes.py b/fingerprint_pro_server_api_sdk/models/webhook_raw_device_attributes.py
index 01c3f874..c4c42809 100644
--- a/fingerprint_pro_server_api_sdk/models/webhook_raw_device_attributes.py
+++ b/fingerprint_pro_server_api_sdk/models/webhook_raw_device_attributes.py
@@ -33,6 +33,9 @@ class WebhookRawDeviceAttributes(dict):
     swagger_types = {
     }
 
+    nullable_map = {
+    }
+
     attribute_map = {
     }
 
diff --git a/fingerprint_pro_server_api_sdk/models/webhook_remote_control.py b/fingerprint_pro_server_api_sdk/models/webhook_remote_control.py
index 4dea5c6d..3ac1f208 100644
--- a/fingerprint_pro_server_api_sdk/models/webhook_remote_control.py
+++ b/fingerprint_pro_server_api_sdk/models/webhook_remote_control.py
@@ -31,6 +31,10 @@ class WebhookRemoteControl(BaseModel):
         'result': 'bool'
     }
 
+    nullable_map = {
+        'result': False
+    }
+
     attribute_map = {
         'result': 'result'
     }
diff --git a/fingerprint_pro_server_api_sdk/models/webhook_root_apps.py b/fingerprint_pro_server_api_sdk/models/webhook_root_apps.py
index aad1ea51..33323dce 100644
--- a/fingerprint_pro_server_api_sdk/models/webhook_root_apps.py
+++ b/fingerprint_pro_server_api_sdk/models/webhook_root_apps.py
@@ -31,6 +31,10 @@ class WebhookRootApps(BaseModel):
         'result': 'bool'
     }
 
+    nullable_map = {
+        'result': False
+    }
+
     attribute_map = {
         'result': 'result'
     }
diff --git a/fingerprint_pro_server_api_sdk/models/webhook_suspect_score.py b/fingerprint_pro_server_api_sdk/models/webhook_suspect_score.py
index cc023f9b..f5904b72 100644
--- a/fingerprint_pro_server_api_sdk/models/webhook_suspect_score.py
+++ b/fingerprint_pro_server_api_sdk/models/webhook_suspect_score.py
@@ -31,6 +31,10 @@ class WebhookSuspectScore(BaseModel):
         'result': 'int'
     }
 
+    nullable_map = {
+        'result': False
+    }
+
     attribute_map = {
         'result': 'result'
     }
diff --git a/fingerprint_pro_server_api_sdk/models/webhook_tampering.py b/fingerprint_pro_server_api_sdk/models/webhook_tampering.py
index c60a80bf..b6981cb3 100644
--- a/fingerprint_pro_server_api_sdk/models/webhook_tampering.py
+++ b/fingerprint_pro_server_api_sdk/models/webhook_tampering.py
@@ -33,6 +33,12 @@ class WebhookTampering(BaseModel):
         'anti_detect_browser': 'bool'
     }
 
+    nullable_map = {
+        'result': False,
+        'anomaly_score': False,
+        'anti_detect_browser': False
+    }
+
     attribute_map = {
         'result': 'result',
         'anomaly_score': 'anomalyScore',
diff --git a/fingerprint_pro_server_api_sdk/models/webhook_tor.py b/fingerprint_pro_server_api_sdk/models/webhook_tor.py
index 1a0ed8ac..68de5bf4 100644
--- a/fingerprint_pro_server_api_sdk/models/webhook_tor.py
+++ b/fingerprint_pro_server_api_sdk/models/webhook_tor.py
@@ -31,6 +31,10 @@ class WebhookTor(BaseModel):
         'result': 'bool'
     }
 
+    nullable_map = {
+        'result': False
+    }
+
     attribute_map = {
         'result': 'result'
     }
diff --git a/fingerprint_pro_server_api_sdk/models/webhook_velocity.py b/fingerprint_pro_server_api_sdk/models/webhook_velocity.py
index cd157a5c..7ed98224 100644
--- a/fingerprint_pro_server_api_sdk/models/webhook_velocity.py
+++ b/fingerprint_pro_server_api_sdk/models/webhook_velocity.py
@@ -47,6 +47,16 @@ class WebhookVelocity(BaseModel):
         'distinct_visitor_id_by_linked_id': 'VelocityData'
     }
 
+    nullable_map = {
+        'distinct_ip': False,
+        'distinct_linked_id': False,
+        'distinct_country': False,
+        'events': False,
+        'ip_events': False,
+        'distinct_ip_by_linked_id': False,
+        'distinct_visitor_id_by_linked_id': False
+    }
+
     attribute_map = {
         'distinct_ip': 'distinctIp',
         'distinct_linked_id': 'distinctLinkedId',
diff --git a/fingerprint_pro_server_api_sdk/models/webhook_virtual_machine.py b/fingerprint_pro_server_api_sdk/models/webhook_virtual_machine.py
index 9c846b59..27f458e4 100644
--- a/fingerprint_pro_server_api_sdk/models/webhook_virtual_machine.py
+++ b/fingerprint_pro_server_api_sdk/models/webhook_virtual_machine.py
@@ -31,6 +31,10 @@ class WebhookVirtualMachine(BaseModel):
         'result': 'bool'
     }
 
+    nullable_map = {
+        'result': False
+    }
+
     attribute_map = {
         'result': 'result'
     }
diff --git a/fingerprint_pro_server_api_sdk/models/webhook_vpn.py b/fingerprint_pro_server_api_sdk/models/webhook_vpn.py
index 5e73cd70..f3a49a6d 100644
--- a/fingerprint_pro_server_api_sdk/models/webhook_vpn.py
+++ b/fingerprint_pro_server_api_sdk/models/webhook_vpn.py
@@ -37,6 +37,14 @@ class WebhookVPN(BaseModel):
         'methods': 'VPNMethods'
     }
 
+    nullable_map = {
+        'result': False,
+        'confidence': False,
+        'origin_timezone': False,
+        'origin_country': False,
+        'methods': False
+    }
+
     attribute_map = {
         'result': 'result',
         'confidence': 'confidence',
diff --git a/template/model.mustache b/template/model.mustache
index 9863b16c..ce0672e7 100644
--- a/template/model.mustache
+++ b/template/model.mustache
@@ -47,6 +47,12 @@ class {{classname}}({{#parent}}{{parent}}{{/parent}}{{^parent}}BaseModel{{/paren
 {{/vars}}
     }
 
+    nullable_map = {
+{{#vars}}
+        '{{name}}': {{#nullable}}True{{/nullable}}{{^nullable}}False{{/nullable}}{{#hasMore}},{{/hasMore}}
+{{/vars}}
+    }
+
     attribute_map = {
 {{#vars}}
         '{{name}}': '{{baseName}}'{{#hasMore}},{{/hasMore}}
diff --git a/test/test_base_model.py b/test/test_base_model.py
index 520bd6cd..e6991853 100644
--- a/test/test_base_model.py
+++ b/test/test_base_model.py
@@ -21,6 +21,13 @@ class ExampleModel(BaseModel):
         'sub_model': 'sub_model'
     }
 
+    nullable_map: Dict[str, str] = {
+        'name': False,
+        'details': False,
+        'items': False,
+        'sub_model': False
+    }
+
     def __init__(self, name=None, details=None, items=None, sub_model=None):
         self.name = name
         self.details = details
@@ -40,6 +47,11 @@ class SubModel(BaseModel):
         'value': 'value'
     }
 
+    nullable_map: Dict[str, str] = {
+        'id': False,
+        'value': False
+    }
+
     def __init__(self, id=None, value=None):
         self.id = id
         self.value = value
diff --git a/test/test_fingerprint_api.py b/test/test_fingerprint_api.py
index fbf65e5c..ede0b5b0 100644
--- a/test/test_fingerprint_api.py
+++ b/test/test_fingerprint_api.py
@@ -11,8 +11,10 @@
 """
 
 import io
+import json
 import os
 import unittest
+from datetime import datetime
 
 import urllib3
 
@@ -246,6 +248,9 @@ def test_get_event_correct_data(self):
                                  preload_content=True, timeout=None)
 
         event_response = self.api.get_event(MOCK_GET_EVENT_200)
+        event_response_dict = event_response.to_dict()
+        self.assertIsNone(event_response_dict["products"]["identification"]["data"]["last_seen_at"]["_global"])
+        self.assertIsNone(event_response_dict["products"]["identification"]["data"]["last_seen_at"]["subscription"])
         self.assertIsInstance(event_response.products.raw_device_attributes.data, RawDeviceAttributes)
 
     def test_get_event_errors_200(self):