code: def dispatch_missing(op, left, right, result):
      
      opstr = '__{opname}__'.format(opname=op.__name__).replace('____', '__')
      if op in [operator.truediv, operator.floordiv,
                getattr(operator, 'div', None)]:
          result = mask_zero_div_zero(left, right, result)
      elif op is operator.mod:
          result = fill_zeros(result, left, right, opstr, np.nan)
      elif op is divmod:
          res0 = mask_zero_div_zero(left, right, result[0])
          res1 = fill_zeros(result[1], left, right, opstr, np.nan)
          result = (res0, res1)
      return result
docs: Fill nulls caused by division by zero, casting to a diffferent dtype
      if necessary.
  
      Parameters
      ----------
      op : function (operator.add, operator.div, ...)
      left : object (Index for non-reversed ops)
      right : object (Index fof reversed ops)
      result : ndarray
  
      Returns
      -------
      result : ndarray