rails--rails/activejob/lib/active_job/queue_name.rb

module ActiveJob
  module QueueName
    extend ActiveSupport::Concern

    module ClassMethods
      mattr_accessor(:queue_base_name) { "active_jobs" }

      def queue_as(part_name)
        self.queue_name = "#{queue_base_name}_#{part_name}"
      end
    end

    included do
      class_attribute :queue_name
      self.queue_name = queue_base_name
    end
  end
end