code: def rotate_backups(directory, rotation_scheme, **options):
      
      program = RotateBackups(rotation_scheme=rotation_scheme, **options)
      program.rotate_backups(directory)
docs: Rotate the backups in a directory according to a flexible rotation scheme.
  
      .. note:: This function exists to preserve backwards compatibility with
                older versions of the `rotate-backups` package where all of the
                logic was exposed as a single function. Please refer to the
                documentation of the :class:`RotateBackups` initializer and the
                :func:`~RotateBackups.rotate_backups()` method for an explanation
                of this function's parameters.