code: def setup(self):
      super().setup()
      self.condition = _random_condition(
          self.cond_shape, self.cond_dtype
      )
  
imports: import unittest
  import numpy
  import pytest
  import chainer.testing
  import chainerx
  import chainerx.testing
  from chainerx_tests import array_utils
  from chainerx_tests import dtype_utils
  from chainerx_tests import math_utils
  from chainerx_tests import op_utils
label_desc: Use image node_id 1 for calling the TestWhereScalar obj's underlying member method code with example usage: obj.setup() without return types