code: def get_oauth_token_key_name(self, provider):
          
          for _provider in self.oauth_providers:
              if _provider["name"] == provider:
                  return _provider.get("token_key", "oauth_token")
docs: Returns the token_key name for the oauth provider
              if none is configured defaults to oauth_token
              this is configured using OAUTH_PROVIDERS and token_key key.