code: def make_optimizer(self, **kwargs):
      if "learning_rate" not in kwargs:
          kwargs["learning_rate"] = 0.1
      return rmsprop.RMSProp(**kwargs)
  
imports: from sonnet.src import test_utils
  from sonnet.src.optimizers import optimizer_tests
  from sonnet.src.optimizers import rmsprop
  import tensorflow
label_desc: Use image node_id 1 for calling the RMSPropTest obj's underlying member method code with example usage: obj.make_optimizer() and returns: rmsprop