Set up attributes to datestamp when the command is called @example class CreateTask < ROM::Commands::Create[:sql] result :one use :timestamps datestamps :created_on, :updated_on end create_user = rom.command(:user).create.curry(name: 'Jane') result = create_user.call result[:created_at] #=> Date.today @param [Array<Symbol>] names A list of attribute names @api public