code: def test_length_zero(self):
      signal = constant_op.constant([], dtype=dtypes.float32)
      frame_length = 2
      frame_step = 1
  
      result = self.evaluate(
          shape_ops.frame(
              signal,
              frame_length,
              frame_step,
              pad_end=True,
              pad_value=99,
          )
      )
      self.assertEqual((0, 2), result.shape)
  
      result = self.evaluate(
          shape_ops.frame(
              signal, frame_length, frame_step, pad_end=False
          )
      )
      self.assertEqual((0, 2), result.shape)
  
imports: import numpy
  from tensorflow.python.eager import context
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import tensor_shape
  from tensorflow.python.framework import test_util
  from tensorflow.python.kernel_tests.signal import test_util
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops.signal import shape_ops
  from tensorflow.python.platform import test
label_desc: Use image node_id 4 for calling the FrameTest obj's underlying member method code with example usage: obj.test_length_zero() without return types