code: def test_input(self):
      x = Input(shape=(2,), batch_size=1)
      result = x.reveal().to_native()
      np.testing.assert_allclose(
          result, np.zeros((1, 2)), rtol=0.0, atol=0.01
      )
  
imports: import unittest
  import numpy
  from tf_encrypted.keras.engine.input_layer import Input
label_desc: Use image node_id 1 for calling the TestInput obj's underlying member method code with example usage: obj.test_input() without return types