code: def good_friday(gyear):
      r"""Get Good Friday for a given year.
  
      Parameters
      ----------
      gyear : int
          Gregorian year.
  
      Returns
      -------
      gf : int
          Good Friday in RDate format.
      """
      gf = easter_day(gyear) - 2
      return gf
  
imports: import calendar
  import logging
  import math
  import pandas
label_desc: Use image node_id 33 for calling a global function with example usage: good_friday(gyear) and returns: gf