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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 create(cls, expr, binds):
 """ Helper for creating new NumExprFactors. This is just a wrapper around NumericalExpression.__new__ that always forwards `bool` as the dtype, since Filters can only be of boolean dtype. """

        return cls(expr=expr, binds=binds, dtype=bool_dtype)