code: def __init__(
      self, a=complex(-np.inf, -np.inf), b=complex(np.inf, np.inf)
  ):
      self.real = Arg(a.real, b.real)
      self.imag = Arg(a.imag, b.imag)
  
imports: import os
  import sys
  import time
  import numpy
  from numpy.testing import assert_
  import pytest
  from scipy.special._testutils import assert_func_equal
label_desc: Use image node_id 1 to create a new ComplexArg object  with example: obj = ComplexArg(a, b)