code: def testSliceMatrixDim0(self):
      x = np.random.rand(8, 4).astype("f")
      self._testSliceMatrixDim0(x, 1, 2)
      self._testSliceMatrixDim0(x, 3, 3)
      y = np.random.rand(8, 7).astype(
          "f"
      )  # 7 * sizeof(float) is not aligned
      self._testSliceMatrixDim0(y, 1, 2)
      self._testSliceMatrixDim0(y, 3, 3)
  
imports: 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_impl
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import gradients_impl
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops import nn_ops
  from tensorflow.python.platform import test
label_desc: Use image node_id 11 for calling the SliceTest obj's underlying member method code with example usage: obj.testSliceMatrixDim0() without return types