code: def state_names(self):
      state_names = np.empty(
          (self.k_endog, self.k_endog + 1), dtype=object
      )
      for i in range(self.k_endog):
          endog_name = self.endog_names[i]
          state_names[i] = ["intercept.%s" % endog_name] + [
              "L1.{}->{}".format(other_name, endog_name)
              for other_name in self.endog_names
          ]
      return state_names.ravel().tolist()
  
file_path: statsmodels/examples/python/statespace_tvpvar_mcmc_cfa.py
imports: from importlib import reload
  import numpy
  import pandas
  import statsmodels.api
  import matplotlib.pyplot
  from scipy.stats import invwishart, invgamma
  import arviz
  from statsmodels.tsa.statespace.simulation_smoother import SIMULATION_STATE
label_desc: Use image node_id 3 for calling the TVPVAR obj's underlying member method code with example usage: obj.state_names() and returns: state_names