Unable to supply necessary params to get refresh tokens for Google provider. #150
Description
Describe the bug
https://docs.aws.amazon.com/bedrock-agentcore/latest/devguide/identity-authentication.html#automatic-refresh-token-storage
In order to have Google provide refresh tokens include access_type=offline in customParameters when calling GetResourceOauth2Token
"customParameters": { "access_type": "offline" }
It is currently not possible to provide this custom parameter with the client in order to have these refresh tokens.
Expected behavior
A way to provide custom params.