code: def fathers_day(gyear):
      r"""Get Father's Day for a given year.
  
      Parameters
      ----------
      gyear : int
          Gregorian year.
  
      Returns
      -------
      fathers_day : int
          Father's Day in RDate format.
      """
      fathers_day = nth_kday(3, 0, gyear, 6, 1)
      return fathers_day
  
imports: import calendar
  import logging
  import math
  import pandas
label_desc: Use image node_id 38 for calling a global function with example usage: fathers_day(gyear) and returns: fathers_day