code: def _OptionalGetValueGrad(unused_op, *grads):
      return gen_optional_ops.optional_from_value(grads)
  
imports: from tensorflow.python.framework import ops
  from tensorflow.python.ops import gen_optional_ops
label_desc: Use image node_id 2 for calling a global function with example usage: _OptionalGetValueGrad(unused_op) and returns: gen_optional_ops