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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 _is_not_pickle_safe_gl_model_class(obj_class):
 """ Check if a Turi create model is pickle safe. The function does it by checking that _CustomModel is the base class. Parameters obj_class : Class to be checked. Returns True if the GLC class is a model and is pickle safe. """

    if issubclass(obj_class, _toolkits._model.CustomModel):
        return not obj_class._is_gl_pickle_safe()
    return False