def convert(self, content, conversion):
        """Convert content to Python data structures."""
        if not conversion:
            data = content
        elif self.format == 'json':
            data = json.loads(content)
        elif self.format == 'xml':
            content = xml(content)
            first = list(content.keys())[0]
            data = content[first]
        else:
            data = content
        return data
Convert content to Python data structures.