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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 update_labels(repo):
 """Update labels."""

    updated = set()
    for label in repo.get_labels():
        edit = find_label(label.name, label.color, label.description)
        if edit is not None:
            print('    Updating {}: #{} "{}"'.format(edit.new, edit.color, edit.description))
            label.edit(edit.new, edit.color, edit.description)
            updated.add(edit.old)
            updated.add(edit.new)
        else:
            if DELETE_UNSPECIFIED:
                print('    Deleting {}: #{} "{}"'.format(label.name, label.color, label.description))
                label.delete()
            else:
                print('    Skipping {}: #{} "{}"'.format(label.name, label.color, label.description))
            updated.add(label.name)
    for name, values in label_list.items():
        color, description = values
        if isinstance(name, tuple):
            new_name = name[1]
        else:
            new_name = name
        if new_name not in updated:
            print('    Creating {}: #{} "{}"'.format(new_name, color, description))
            repo.create_label(new_name, color, description)