def _read_from_definition_body(self):
<EOL>location = parse_aws_include_transform(self.definition_body)<EOL>if location:<EOL><INDENT>LOG.debug("<STR_LIT>", location)<EOL>return self._download_swagger(location)<EOL><DEDENT>LOG.debug("<STR_LIT>")<EOL>return self.definition_body<EOL>
Read the Swagger document from DefinitionBody. It could either be an inline Swagger dictionary or an
AWS::Include macro that contains location of the included Swagger. In the later case, we will download and
parse the Swagger document.

Returns
-------
dict
    Swagger document, if we were able to parse. None, otherwise