code: def relu1(input_tensor):
      # Note that the following is not supported:
      #   out = tf.maximum(-1.0, tf.minimum(input_tensor, 1.0))
      out = tf.minimum(1.0, tf.maximum(input_tensor, -1.0))
      return out
  
file_path: tensorflow/tensorflow/lite/testing/op_tests/conv_activation.py
imports: import numpy
  import tensorflow
  from tensorflow.lite.testing.zip_test_utils import create_tensor_data
  from tensorflow.lite.testing.zip_test_utils import make_zip_of_tests
  from tensorflow.lite.testing.zip_test_utils import register_make_test_function
label_desc: Use image node_id 4 for calling a global function with example usage: relu1(input_tensor) and returns: out