# File lib/mongo/collection.rb, line 618
    def find_and_modify(opts={})
      cmd = BSON::OrderedHash.new
      cmd[:findandmodify] = @name
      cmd.merge!(opts)
      cmd[:sort] = Mongo::Support.format_order_clause(opts[:sort]) if opts[:sort]

      @db.command(cmd)['value']
    end