code: def testString(self):
      params = np.array([[b"asdf", b"zxcv"], [b"qwer", b"uiop"]])
      self.assertAllEqual(
          [b"qwer", b"uiop"], array_ops.gather(params, 1, axis=0)
      )
      self.assertAllEqual(
          [b"asdf", b"qwer"], array_ops.gather(params, 0, axis=1)
      )
  
imports: from absl.testing import parameterized
  import numpy
  from tensorflow.python.eager import backprop
  from tensorflow.python.eager import def_function
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import errors
  from tensorflow.python.framework import indexed_slices
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import tensor_spec
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import gradient_checker_v2
  from tensorflow.python.ops import gradients_impl
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops import ref_variable
  from tensorflow.python.ops import resource_variable_ops
  from tensorflow.python.ops import variables
  from tensorflow.python.platform import test
label_desc: Use image node_id 7 for calling the GatherTest obj's underlying member method code with example usage: obj.testString() without return types