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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 phi_effect_mip(self, mechanism, purview):
 """Return the |small_phi| of the effect MIP. This is the distance between the unpartitioned effect repertoire and the MIP cause repertoire. """

        mip = self.effect_mip(mechanism, purview)
        return mip.phi if mip else 0