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: zones.rb
    path of file: ./repos/brew/Library/Homebrew/vendor/bundle-standalone/ruby/2.3.0/gems/activesupport-5.2.2/lib/active_support/core_ext/date_and_time
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

module DateAndTime
  module Zones
    # Returns the
    
    def in_time_zone(zone = ::Time.zone)
      time_zone = ::Time.find_zone! zone
      time = acts_like?(:time) ? self : nil

      if time_zone
        time_with_zone(time, time_zone)
      else
        time || to_time
      end