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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 signal_committed_filefields(sender, instance, **kwargs):
 """ A post_save signal handler which sends a signal for each ``FileField`` that was committed this save. """

    for field_name in getattr(instance, '_uncommitted_filefields', ()):
        fieldfile = getattr(instance, field_name)
        # Don't send the signal for deleted files.
        if fieldfile:
            signals.saved_file.send_robust(sender=sender, fieldfile=fieldfile)