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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 group(__decorated__, **Config):
 r"""A decorator to make groups out of classes. Config: * name (str):
 The name of the group. Defaults to __decorated__.__name__. * desc (str):
 The description of the group (optional). * alias (str):
 The alias for the group (optional). """

  _Group = Group(__decorated__, Config)

  if isclass(__decorated__): # convert the method of the class to static methods so that they could be accessed like object methods; ir: g1/t1(...).
    static(__decorated__)

  state.ActiveModuleMemberQ.insert(0, _Group)

  return _Group.Underlying