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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 _compute_biases(self, rs):
 """Generate MLP biases"""


        # use supplied biases if present
        biases = self._get_user_components('biases')
        if (biases is None):
            b_size = self.n_hidden
            biases = rs.normal(size=b_size)

        self.components_['biases'] = biases