code: def kappa_no_prevalence_calc(overall_accuracy):
      """
      Calculate Kappa no prevalence.
  
      :param overall_accuracy: overall accuracy
      :type overall_accuracy: float
      :return: Kappa no prevalence as float
      """
      try:
          result = 2 * overall_accuracy - 1
          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 23 for calling a global function with example usage: kappa_no_prevalence_calc(overall_accuracy) and returns: result, str