code: def reliability_calc(RACC, ACC):
      """
      Calculate Reliability.
  
      :param RACC: random accuracy
      :type RACC: float
      :param ACC: accuracy
      :type ACC: float
      :return: reliability as float
      """
      try:
          result = (ACC - RACC) / (1 - RACC)
          return result
      except Exception:
          return "None"
  
imports: from __future__ import division
  import math
  import operator
  from functools import reduce
  from .pycm_interpret import *
  from .pycm_ci import kappa_SE_calc, CI_calc, SE_calc
  from .pycm_util import complement
label_desc: Use image node_id 35 for calling a global function with example usage: reliability_calc(RACC, ACC) and returns: result, str