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: uploader.rb
    path of file: ./repos/open-build-service/src/api/app/services/file_service
    
    the code of the file until where you have to start completion: module FileService
  class Uploader
    def errors
      @errors.compact.join("\n")
    end

    def added_fil
    
    def wait_for_update?
      special_files = %w[_aggregate _constraints _link _service _patchinfo _channel]
      contains_file = false

      @commit_filelist.each do |file|
        contains_file = true if special_files.include?(file[:name])
      end
      contains_file
    end