code: def param_names(self):
      # Add the corresponding names for the new loading parameters
      #  (the name can be anything you like)
      return super().param_names + [
          "loading.L%d.f1.%s" % (i, self.endog_names[3])
          for i in range(1, 4)
      ]
  
file_path: statsmodels/examples/python/statespace_dfm_coincident.py
imports: import numpy
  import pandas
  import statsmodels.api
  import matplotlib.pyplot
  from pandas_datareader.data import DataReader
  from statsmodels.tsa.statespace import tools
label_desc: Use image node_id 3 for calling the ExtendedDFM obj's underlying member method code with example usage: obj.param_names() and returns: unknown