code: def _testSliceMatrixDim0(self, x, begin, size):
      tf_ans = self.evaluate(
          array_ops.slice(x, [begin, 0], [size, x.shape[1]])
      )
      np_ans = x[begin : begin + size, :]
      self.assertAllEqual(tf_ans, np_ans)
  
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 10 for calling the SliceTest obj's underlying member method code with example usage: obj._testSliceMatrixDim0(x, begin, size) without return types