code: def fix_random():
      """Decorator that fixes random numbers in an op test.
  
      .. seealso:: :func:`~chainer.testing.fix_random`
      """
      return chainer.testing.random.fix_random(
          setup_method="setup", teardown_method="teardown"
      )
  
imports: import inspect
  import sys
  import unittest
  import numpy
  import pytest
  import chainer
  import chainer.testing
  import chainerx
label_desc: Use image node_id 4 for calling a global function with example usage: fix_random() and returns: chainer