How to use the pyodesys.symbolic.TransformedSys.from_callback function in pyodesys

scaling of the dependent variables (default: 1)
        indep_scaling: number (>0)
            scaling of the independent variable (default: 1)
        \\*\\*kwargs :
            Keyword arguments passed onto :class:`ScaledSys`.

        Examples
        --------
        >>> def f(x, y, p):
        ...     return [p[0]*y[0]**2]
        >>> odesys = ScaledSys.from_callback(f, 1, 1, dep_scaling=10)
        >>> odesys.exprs
        (p_0*y_0**2/10,)

        """
        return TransformedSys.from_callback(
            cb, ny, nparams,
            dep_transf_cbs=repeat(cls._scale_fw_bw(dep_scaling)),
            indep_transf_cbs=cls._scale_fw_bw(indep_scaling),
            **kwargs
        )