code: def testInt64Basic(self):
      x = (
          np.arange(-6 << 40, 6 << 40, 2 << 40)
          .reshape(1, 3, 2)
          .astype(np.int64)
      )
      self._compareCpu(x, np.abs, math_ops.abs)
      self._compareCpu(x, np.abs, _ABS)
      self._compareCpu(x, np.negative, math_ops.negative)
      self._compareCpu(x, np.negative, _NEG)
      self._compareCpu(x, np.sign, math_ops.sign)
  
      self._compareBothSparse(x, np.abs, math_ops.abs)
      self._compareBothSparse(x, np.negative, math_ops.negative)
      self._compareBothSparse(x, np.sign, math_ops.sign)
  
imports: import math
  import numpy
  from tensorflow.python.eager import backprop
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import sparse_tensor
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import gen_math_ops
  from tensorflow.python.ops import gradient_checker
  from tensorflow.python.ops import gradient_checker_v2
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops import nn_grad
  from tensorflow.python.ops import special_math_ops
  from tensorflow.python.platform import test
  from tensorflow.python.platform import tf_logging
label_desc: Use image node_id 25 for calling the UnaryOpTest obj's underlying member method code with example usage: obj.testInt64Basic() without return types