code: def __init__(self, *args):
      pass
  
file_path: pmdarima/pmdarima/arima/tests/test_arima_diagnostics.py
imports: from pmdarima.datasets import load_lynx
  from pmdarima.arima import ARIMA
  from unittest.mock import patch
  import pytest
label_desc: Use image node_id 1 to create a new MockMPLAxis object  with example: obj = MockMPLAxis()