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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 alias_event_handler(_, **kwargs):
 """ An event handler for alias transformation when EVENT_INVOKER_PRE_TRUNCATE_CMD_TBL event is invoked. """

    try:
        telemetry.start()

        start_time = timeit.default_timer()
        args = kwargs.get('args')
        alias_manager = AliasManager(**kwargs)

        # [:] will keep the reference of the original args
        args[:] = alias_manager.transform(args)

        if is_alias_command(['create', 'import'], args):
            load_cmd_tbl_func = kwargs.get('load_cmd_tbl_func', lambda _: {})
            cache_reserved_commands(load_cmd_tbl_func)

        elapsed_time = (timeit.default_timer() - start_time) * 1000
        logger.debug(DEBUG_MSG_WITH_TIMING, args, elapsed_time)

        telemetry.set_execution_time(round(elapsed_time, 2))
    except Exception as client_exception:  # pylint: disable=broad-except
        telemetry.set_exception(client_exception)
        raise
    finally:
        telemetry.conclude()