code: def setup_method(self):
      self.rng = np.random.default_rng(0)
  
file_path: pytensor/tests/d3viz/test_formatting.py
imports: import numpy
  import pytest
  from pytensor import config, function
  from pytensor.d3viz.formatting import PyDotFormatter
  from pytensor.printing import pydot_imported, pydot_imported_msg
  from tests.d3viz import models
label_desc: Use image node_id 1 for calling the TestPyDotFormatter obj's underlying member method code with example usage: obj.setup_method() without return types