docstr: Nodes should have the format {var}_lag{l}
docstr_tok: ["Nodes","should","have","the","format","{","var","}","_lag","{","l","}"]
code: def test_naming_nodes(self):
      """Nodes should have the format {var}_lag{l}"""
      g = generate_structure_dynamic(5, 3, 3, 4)
      pattern = re.compile(r"[0-5]_lag[0-3]")
      for node in g.nodes:
          match = pattern.match(node)
          assert match and (match.group() == node)
  
imports: import re
  import string
  from itertools import product
  import numpy
  import pandas
  import pytest
  from scipy import stats
  from sklearn.gaussian_process.kernels import RBF
  from causalnex.structure import StructureModel
  from causalnex.structure.data_generators import gen_stationary_dyn_net_and_df, generate_binary_data, generate_binary_dataframe, generate_categorical_dataframe, generate_continuous_data, generate_continuous_dataframe, generate_count_dataframe, generate_dataframe_dynamic, generate_structure, generate_structure_dynamic
  from tests.structure.data_generators.test_core import calculate_proba
label_desc: Use image node_id 2 for calling the TestGenerateStructureDynamic obj's underlying member method code with example usage: obj.test_naming_nodes() without return types