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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 configure_logging():
 """ Initialize logging configuration to defaults. If the environment variable DISABLE_TRUSTAR_LOGGING is set to true, this will be ignored. """


    if not parse_boolean(os.environ.get('DISABLE_TRUSTAR_LOGGING')):

        # configure
        dictConfig(DEFAULT_LOGGING_CONFIG)

        # construct error logger
        error_logger = logging.getLogger("error")

        # log all uncaught exceptions
        def log_exception(exc_type, exc_value, exc_traceback):
            error_logger.error("Uncaught exception", exc_info=(exc_type, exc_value, exc_traceback))

        # register logging function as exception hook
        sys.excepthook = log_exception