Filter by Country

Hi, 
can we change the url with other filters? like facetGeoRegion or similar. I have not found instructions on how to change the string can you help?
example
"https://www.linkedin.com/voyager/api/search/cluster?count=40&guides=List(v->PEOPLE,facetGeoRegion->eu.it,facetCurrentCompany->%s)&origin=OTHER&q=guided&start=0" % (companyID)