def _configure_merge(self):
        out_shapes = [l.out_shape for l in self.layers]
        self.out_shape = out_shapes[0]
Ensure that input filters are applied, and that they are applied
dataset/ETHPy150Open NervanaSystems/neon/neon/layers/container.py/MergeSum._configure_merge--crossover with--dataset/ETHPy150Open miracle2k/webassets/tests/test_bundle_build.py/TestFilterApplication.test_input_before_output