async def _handle_fb_response(self, response: aiohttp.ClientResponse):
ok = response.status == <NUM_LIT:200><EOL>if not ok:<EOL><INDENT>try:<EOL><INDENT>error = (await response.json())['<STR_LIT:error>']['<STR_LIT:message>']<EOL><DEDENT>except Exception:<EOL><INDENT>error = '<STR_LIT>'<EOL><DEDENT>raise PlatformOperationError('<STR_LIT>'<EOL>.format(error))<EOL><DEDENT>
Check that Facebook was OK with the API call we just made and raise
an exception if it failed.