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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 sync_mptt_tree_fields_from_draft_to_published_post_save( sender, instance, **kwargs):
 """ Post save trigger to immediately sync MPTT tree structure field changes made to draft copies to their corresponding published copy. """

    mptt_opts = getattr(instance, '_mptt_meta', None)
    published_copy = getattr(instance, 'publishing_linked', None)
    if mptt_opts and published_copy:
        sync_mptt_tree_fields_from_draft_to_published(instance)