def modify_graph(self, outputs):
pass<EOL>
Modify the outputs of a particular layer in the computation graph.

        Parameters
        ----------
        outputs : dict of Theano expressions
            A map from string output names to the corresponding Theano
            expression. This dictionary contains the fully-scoped name of all
            outputs from a single layer in the computation graph.

            This map is mutable, so any changes that the regularizer makes will
            be retained when the caller regains control.

        Notes
        -----

        This method is applied during graph-construction time to change the
        behavior of one or more layer outputs. For example, the
        :class:`BernoulliDropout` class replaces matching outputs with an
        expression containing "masked" outputs, where some elements are randomly
        set to zero each time the expression is evaluated.

        Any regularizer that needs to modify the structure of the computation
        graph should implement this method.