class_docstr: Mock loss class.
class_docstr_tok: ["Mock","loss","class","."]
docstr: Do not need to init anything.
docstr_tok: ["Do","not","need","to","init","anything","."]
code: def __init__(self, **kwargs):
      """Do not need to init anything."""
      pass
  
imports: import sys
  import numpy
  from fairlearn.adversarial._adversarial_mitigation import _AdversarialFairness
  from fairlearn.adversarial._pytorch_engine import PytorchEngine
  from fairlearn.adversarial._tensorflow_engine import TensorflowEngine
  from fairlearn.adversarial._backend_engine import BackendEngine
label_desc: Use image node_id 1 to create a new loss_class object  with example: obj = loss_class()