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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _read_from_json(self, file):
 """ Reads the file specified from json and creates an object based on the id of each element :param str file: Path to file of json to read :return: object of data read from json file :rtype: object """


        try:
            with io.open(os.path.join(self._PATH, file), encoding="utf8") as f:
                return {u["id"]: u for u in json.load(f)}
        except IOError:
            return {}