def __missing__(self, key):
        if self.default_factory is None:
            raise KeyError(key)
        else:
            ret = self[key] = self.default_factory(name=key)
            return ret
def projection_shortcut(inputs, name):
    return conv2d_fixed_padding(
        inputs=inputs,
        filters=filters_out,
        kernel_size=1,
        strides=strides,
        data_format=data_format,
        name=name)