class_docstr: Wait an incremental amount of time after each attempt.
  
  Starting at a starting value and incrementing by a value for each attempt
  (and restricting the upper limit to some maximum value).
code: def __call__(self, retry_state):
      result = self.start + (
          self.increment * (retry_state.attempt_number - 1)
      )
      return max(0, min(result, self.max))
  
imports: import abc
  import random
  import six
  from tenacity import _utils
label_desc: Use image node_id 2 for calling the wait_incrementing obj's underlying member method code with example usage: obj.__call__(retry_state) and returns: max