async def blobize(self, elem=None, elem_type=None, params=None):
if self.writing:<EOL><INDENT>await self.field(elem=elem, elem_type=elem_type, params=params)<EOL>return bytes(self.iobj.buffer)<EOL><DEDENT>else:<EOL><INDENT>return await self.field(elem=elem, elem_type=elem_type, params=params)<EOL><DEDENT>
Main blobbing
:param elem:
:param elem_type:
:param params:
:return: