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: delegation.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/module
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

require "set"
require "active_support/core_ext/regexp"

class Module
  # Error generated by +delegate+ when a method is called on +nil+ and +allow_nil+
  # option is not used.
  class DelegationError < NoMethodError; end

  RUBY_RESERVED_KEYWORDS = %w(alias and BEGIN begin break case class def defined? do
  else elsif END end ensure false for if in module next nil not or redo rescue retry
  return self super then true undef unless until when while yield)
  DELEGATION_RESERVED_KEYWORDS = %w(_ arg args block)
  DELEGATION_RESERVED_METHOD_NAMES = Set.new(
    RUBY_RESERVED_KEYWORDS + DELEGATION_RESERVED_KEYWORDS
  ).freeze

  # Provides a +delegate+ class method to easily expose contained objects'
  # public methods as your own.
  #
  # ==== Options
  # * <tt>:to</tt> - Specifies the target 
    
  def delegate_missing_to(target)
    target = target.to_s
    target = "self.#{target}" if DELEGATION_RESERVED_METHOD_NAMES.include?(target)

    module_eval <<-RUBY, __FILE__, __LINE__ + 1
      def respond_to_missing?(name, include_private = false)
        # It may look like an oversight, but we deliberately do not pass
        # +include_private+, because they do not get delegated.

        #{target}.respond_to?(name) || super
      end

      def method_missing(method, *args, &block)
        if #{target}.respond_to?(method)
          #{target}.public_send(method, *args, &block)
        else
          begin
            super
          rescue NoMethodError
            if #{target}.nil?
              raise DelegationError, "\#{method} delegated to #{target}, but #{target} is nil"
            else
              raise
            end
          end
        end
      end