code: def __init__(self, lr, decay, eps):
      super().__init__()
      self.lr = lr
      self.decay = decay
      self.eps = eps
      self.v = {}
  
file_path: nnabla/python/test/solver/test_rmsprop.py
imports: import pytest
  import nnabla.solvers
  import numpy
  from solver_test_utils import solver_tester, RefSolver
  from nbla_test_utils import list_context
label_desc: Use image node_id 1 to create a new RefRMSprop object from inherited base classes: RefSolver with example: obj = RefRMSprop(lr, decay, eps)