code: def __init__(self, alpha, beta1, beta2, eps, wd):
      super().__init__(wd)
      self.alpha = alpha
      self.beta1 = beta1
      self.beta2 = beta2
      self.eps = eps
      self.init_alpha = alpha
      self.m = {}
      self.v = {}
      self.t = {}
  
file_path: nnabla/python/test/solver/test_adamw.py
imports: import pytest
  import nnabla.solvers
  import numpy
  from solver_test_utils import solver_tester, RefSolver, MixinWeightDecayFused
  from nbla_test_utils import list_context
label_desc: Use image node_id 1 to create a new RefAdamW object from inherited base classes: MixinWeightDecayFused, RefSolver with example: obj = RefAdamW(alpha, beta1, beta2, eps, wd)