code: def set_user_project_permission(self, project, user, auth_role):
          
          self.remote_store.set_user_project_permission(project, user, auth_role)
docs: Give user access permissions for a project.
          :param project: RemoteProject project to update permissions on
          :param user: RemoteUser user to receive permissions
          :param auth_role: str project role eg 'project_admin'