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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 save_related(self, request, form, *args, **kwargs):
 """ Send the signal `publishing_post_save_related` when a draft copy is saved and all its relationships have also been created. """

        result = super(PublishingAdmin, self) \
            .save_related(request, form, *args, **kwargs)
        # Send signal that draft has been saved and all relationships created
        if form.instance:
            publishing_signals.publishing_post_save_related.send(
                sender=type(self), instance=form.instance)
        return result