async def container(self, container=None, container_type=None, params=None):
if hasattr(container_type, '<STR_LIT>'):<EOL><INDENT>container = container_type() if container is None else container<EOL>return await container.blob_serialize(self, elem=container, elem_type=container_type, params=params)<EOL><DEDENT>if self.writing:<EOL><INDENT>return await self.container_dump(container, container_type, params)<EOL><DEDENT>else:<EOL><INDENT>return await self.container_load(container_type, params=params, container=container)<EOL><DEDENT>
Loads/dumps container
:return: