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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 evaluate(self, x, *args):
 """One dimensional constant flux model function. Parameters x : number or ndarray Wavelengths in Angstrom. Returns ------- y : number or ndarray Flux in PHOTLAM. """

        a = (self.amplitude * np.ones_like(x)) * self._flux_unit
        y = units.convert_flux(x, a, units.PHOTLAM)
        return y.value