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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 _multiply(self, f1, f2, out):
 """Pointwise multiplication of ``f1`` and ``f2``. Notes ----- The multiplication is implemented with a simple Python function, so the non-vectorized versions are slow. """

        # Avoid infinite recursions by making a copy of the functions
        f1_copy = f1.copy()
        f2_copy = f2.copy()

        def product_oop(x, **kwargs):
            """Product out-of-place evaluation function."""
            return np.asarray(f1_copy(x, **kwargs) * f2_copy(x, **kwargs),
                              dtype=self.scalar_out_dtype)

        out._call_out_of_place = product_oop
        decorator = preload_first_arg(out, 'in-place')
        out._call_in_place = decorator(_default_in_place)
        out._call_has_out = out._call_out_optional = False
        return out