client.py 文件源码

def can_paginate(self, operation_name):
        """Check if an operation can be paginated.

        :type operation_name: string
        :param operation_name: The operation name.  This is the same name
            as the method name on the client.  For example, if the
            method name is ``create_foo``, and you'd normally invoke the
            operation as ``client.create_foo(**kwargs)``, if the
            ``create_foo`` operation can be paginated, you can use the
            call ``client.get_paginator("create_foo")``.

        :return: ``True`` if the operation can be paginated,
            ``False`` otherwise.

        """
        if 'page_config' not in self._cache:
            try:
                page_config = self._loader.load_service_model(
                    self._service_model.service_name,
                    'paginators-1',
                    self._service_model.api_version)['pagination']
                self._cache['page_config'] = page_config
            except DataNotFoundError:
                self._cache['page_config'] = {}
        actual_operation_name = self._PY_TO_OP_NAME[operation_name]
        return actual_operation_name in self._cache['page_config']