code: def test__add__(parameter):
      """Test the __add__ magic method."""
      par, _ = parameter
      assert_allclose(par + 5.25, 15.25)
  
imports: from math import trunc
  import pickle
  import numpy
  from numpy.testing import assert_allclose
  import pytest
  import lmfit
label_desc: Use image node_id 31 for calling a global function with example usage: test__add__(parameter) without return types