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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 _register_lltd_specific_class(*attr_types):
 """This can be used as a class decorator; if we want to support Python 2.5, we have to replace class LLTDAttributeSpecific(LLTDAttribute):
 by class LLTDAttributeSpecific(LLTDAttribute):
 LLTDAttributeSpecific ) """

    def _register(cls):
        for attr_type in attr_types:
            SPECIFIC_CLASSES[attr_type] = cls
        type_fld = LLTDAttribute.fields_desc[0].copy()
        type_fld.default = attr_types[0]
        cls.fields_desc = [type_fld] + cls.fields_desc
        return cls
    return _register