code: def test_global_pooling_unknown_option(self):
      with self.assertRaises(ValueError):
          layers.GlobalPooling("unknown")
  
imports: from collections import namedtuple
  import numpy
  import tensorflow
  from neupy import layers
  from neupy.utils import asfloat
  from neupy.exceptions import LayerConnectionError
  from neupy.layers.pooling import pooling_output_shape
  from base import BaseTestCase
label_desc: Use image node_id 4 for calling the GlobalPoolingLayersTestCase obj's underlying member method code with example usage: obj.test_global_pooling_unknown_option() without return types