code: def crelu(features, axis=-1, name=None):
      c = ivy.concat([features, -features], axis=axis)
      return ivy.relu(c)
  
imports: import ivy
  from ivy.functional.frontends.tensorflow.func_wrapper import to_ivy_arrays_and_back
  from ivy.func_wrapper import with_unsupported_dtypes, with_supported_dtypes
  from ivy.functional.frontends.tensorflow import check_tensorflow_casting
label_desc: Use image node_id 19 for calling a global function with example usage: crelu(features, axis, name) and returns: ivy