Get a list of network members
        It is method for GET /network/{id}/member

def listMembers(self, id, headers=None, query_params=None, content_type="application/json"):
        """
        Get a list of network members
        It is method for GET /network/{id}/member
        """
        uri = self.client.base_url + "/network/"+id+"/member"
        return self.client.get(uri, None, headers, query_params, content_type)