class_docstr: Constant backoff upon failure
class_docstr_tok: ["Constant","backoff","upon","failure"]
code: def compute(self, failures):
      return self._backoff
  
imports: import random
  from abc import ABC, abstractmethod
label_desc: Use image node_id 2 for calling the ConstantBackoff obj's underlying member method code with example usage: obj.compute(failures) and returns: self