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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 _convert_scalar_indexer(self, key, kind=None):
 """ We don't allow integer or float indexing on datetime-like when using loc. Parameters key : label of the slice bound kind : {'ix', 'loc', 'getitem', 'iloc'} or None """


        assert kind in ['ix', 'loc', 'getitem', 'iloc', None]

        # we don't allow integer/float indexing for loc
        # we don't allow float indexing for ix/getitem
        if is_scalar(key):
            is_int = is_integer(key)
            is_flt = is_float(key)
            if kind in ['loc'] and (is_int or is_flt):
                self._invalid_indexer('index', key)
            elif kind in ['ix', 'getitem'] and is_flt:
                self._invalid_indexer('index', key)

        return super()._convert_scalar_indexer(key, kind=kind)