class_docstr: Binding target for methods replaced by function and defun.
code: def call(self, args, kwargs):
      wrapped_fn = self.weakrefself_func__()
      return wrapped_fn(self.weakrefself_target__(), *args, **kwargs)
  
imports: import weakref
  from tensorflow.python.util import tf_inspect
label_desc: Use image node_id 4 for calling the TfMethodTarget obj's underlying member method code with example usage: obj.call(args, kwargs) and returns: wrapped_fn