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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 copy(self, names=None, dtype=None, levels=None, codes=None, deep=False, _set_identity=False, **kwargs):
 """ Make a copy of this object. Names, dtype, levels and codes can be passed and will be set on new copy. Parameters names : sequence, optional dtype : numpy dtype or pandas type, optional levels : sequence, optional codes : sequence, optional Returns ------- copy : MultiIndex Notes ----- In most cases, there should be no functional difference from using ``deep``, but if ``deep`` is passed it will attempt to deepcopy. This could be potentially expensive on large MultiIndex objects. """

        name = kwargs.get('name')
        names = self._validate_names(name=name, names=names, deep=deep)

        if deep:
            from copy import deepcopy
            if levels is None:
                levels = deepcopy(self.levels)
            if codes is None:
                codes = deepcopy(self.codes)
        else:
            if levels is None:
                levels = self.levels
            if codes is None:
                codes = self.codes
        return MultiIndex(levels=levels, codes=codes, names=names,
                          sortorder=self.sortorder, verify_integrity=False,
                          _set_identity=_set_identity)