code: def test_orthogonal_gain():
      import numpy as np
      from lasagne.init import Orthogonal
  
      gain = 2
      sample = Orthogonal(gain).sample((100, 200))
      assert np.allclose(
          np.dot(sample, sample.T), gain * gain * np.eye(100), atol=1e-6
      )
  
      gain = np.sqrt(2)
      sample = Orthogonal("relu").sample((100, 200))
      assert np.allclose(
          np.dot(sample, sample.T), gain * gain * np.eye(100), atol=1e-6
      )
  
imports: import pytest
label_desc: Use image node_id 34 for calling a global function with example usage: test_orthogonal_gain() without return types