def from_uncharted_json_file(cls, file):
        """ Construct an AnalysisGraph object from a file containing INDRA
        statements serialized exported by Uncharted's CauseMos webapp.
        """
        with open(file, "r") as f:
            _dict = json.load(f)
        return cls.from_uncharted_json_serialized_dict(_dict)