code: def forward(self, x):
      self._init(x)
      return x + self.w
  
imports: from absl.testing import parameterized
  import sonnet
  from sonnet.src import test_utils
  from sonnet.src.conformance import descriptors
  import tensorflow
  import tree
label_desc: Use image node_id 2 for calling the ModuleWithCustomForward obj's underlying member method code with example usage: obj.forward(x) and returns: unknown