class_docstr: Binding target for methods replaced by function and defun.
code: def target_class(self):
      true_self = self.weakrefself_target__()
      if tf_inspect.isclass(true_self):
          # Class method
          return true_self
      else:
          return true_self.__class__
  
imports: import weakref
  from tensorflow.python.util import tf_inspect
label_desc: Use image node_id 3 for calling the TfMethodTarget obj's underlying member method code with example usage: obj.target_class() and returns: true_self, true_self