<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def touch():
 """ Create a .vacationrc file if none exists. """

    if not os.path.isfile(get_rc_path()):
        open(get_rc_path(), 'a').close()
        print('Created file: {}'.format(get_rc_path()))