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: artifacts.rb
    path of file: ./repos/gitlabhq/lib/gitlab/ci/config/entry
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

mo
    
          def expose_as_present?
            # This duplicates the `validates :config, type: Hash` above,
            # but Validatable currently doesn't halt the validation
            # chain if it encounters a validation error.
            return false unless @config.is_a?(Hash)

            !@config[:expose_as].nil?
          end
        end