You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: month_of_year.rb
    path of file: ./repos/ice_cube/lib/ice_cube/validations
    
    the code of the file until where you have to start completion: module IceCube
  module Validations::MonthOfYear
    def month_of_year(*months)
      months.flatten.each do |month|
        unless month.is_a?(Integer) || month.is_a?(Symbol)
          raise ArgumentError, "expecting Integer or Symbol va
    
    def month_of_year(*months)
      months.flatten.each do |month|
        unless month.is_a?(Integer) || month.is_a?(Symbol)
          raise ArgumentError, "expecting Integer or Symbol value for month, got #{month.inspect}"
        end
        month = TimeUtil.sym_to_month(month)
        verify_alignment(month, :month, :month_of_year) { |error| raise error }
        validations_for(:month_of_year) << Validation.new(month)
      end