code: def testPaddingProvideShape(self):
      self.assertEqual(
          [[0, 0, 0], [0, 0, 0]],
          utils.pad([], pad_token=0, pad_shape=(2, 3)),
      )
      self.assertEqual(
          [[1, 2, 3], [1, 0, 0]],
          utils.pad([[1, 2, 3], [1]], pad_token=0, pad_shape=(2, 3)),
      )
      self.assertEqual([], utils.pad([], pad_token=0, pad_shape=()))
  
file_path: pytext/pytext/data/test/utils_test.py
imports: import unittest
  from pytext.data import utils
label_desc: Use image node_id 2 for calling the PaddingTest obj's underlying member method code with example usage: obj.testPaddingProvideShape() without return types