code: def print_dparams(self, dparams_est):
      raise NotImplementedError
  
imports: from statsmodels.compat.python import lrange
  import scipy
  import numpy
  from itertools import product
  from statsmodels.genmod.families import Gaussian
  from statsmodels.genmod.generalized_estimating_equations import GEE
  from statsmodels.genmod.cov_struct import Autoregressive, Nested
label_desc: Use image node_id 1 for calling the GEE_simulator obj's underlying member method code with example usage: obj.print_dparams(dparams_est) without return types