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: mongoid6x.rb
    path of file: ./repos/bullet/lib/bullet
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

module Bullet
  module Mongoid
    def self.enable
      require 'mongoid'
      ::Mongoid::Contextual::Mongo.class_eval do
        alias_method :origin_first, :first
        alias_method :origin_last, :last
        alias_method :origin_each, :each
        alias_method :origin_eager_load, :eager_load

        def first(opt = {})
          result = origin_first(opt)
          Bullet::Detector::NPlusOneQuery.add_impossible_object(result) if result
          result
        end

        def last(opt = {})
          result = origin_last(opt)
          Bullet::Detector::NPlusOneQuery.add_impossible_object(result) if result
          result
        end

        def each(&block)
          return to_enum unless block

          records = []
          origin_each {
    
    def self.enable
      require 'mongoid'
      ::Mongoid::Contextual::Mongo.class_eval do
        alias_method :origin_first, :first
        alias_method :origin_last, :last
        alias_method :origin_each, :each
        alias_method :origin_eager_load, :eager_load

        def first(opt = {})
          result = origin_first(opt)
          Bullet::Detector::NPlusOneQuery.add_impossible_object(result) if result
          result
        end

        def last(opt = {})
          result = origin_last(opt)
          Bullet::Detector::NPlusOneQuery.add_impossible_object(result) if result
          result
        end

        def each(&block)
          return to_enum unless block

          records = []
          origin_each { |record| records << record }
          if records.length > 1
            Bullet::Detector::NPlusOneQuery.add_possible_objects(records)
          elsif records.size == 1
            Bullet::Detector::NPlusOneQuery.add_impossible_object(records.first)
          end
          records.each(&block)
        end

        def eager_load(docs)
          associations = criteria.inclusions.map(&:name)
          docs.each { |doc| Bullet::Detector::NPlusOneQuery.add_object_associations(doc, associations) }
          Bullet::Detector::UnusedEagerLoading.add_eager_loadings(docs, associations)
          origin_eager_load(docs)
        end
      end