parameters: (self, client_key, realms, request)
docstring: Validates that the client may request access to the realm.
  
          :param client_key: The client/consumer key.
          :param realms: The list of realms that client is requesting access to.
          :param request: An oauthlib.common.Request object.
          :returns: True or False
  
          This method is invoked when obtaining a request token and should
          tie a realm to the request token and after user authorization
          this realm restriction should transfer to the access token.
  
          This method is used by
  
          * RequestTokenEndpoint
docstring_summary: Validates that the client may request access to the realm.
docstring_tokens: Validates that the client may request access to the realm .
function: def validate_requested_realms(self, client_key, realms, request):
          """Validates that the client may request access to the realm.
  
          :param client_key: The client/consumer key.
          :param realms: The list of realms that client is requesting access to.
          :param request: An oauthlib.common.Request object.
          :returns: True or False
  
          This method is invoked when obtaining a request token and should
          tie a realm to the request token and after user authorization
          this realm restriction should transfer to the access token.
  
          This method is used by
  
          * RequestTokenEndpoint
          """
          raise self._subclass_must_implement("validate_requested_realms")
function_tokens: def validate_requested_realms ( self , client_key , realms , request ) : raise self . _subclass_must_implement ( "validate_requested_realms" )