    # File lib/amqp/integration/rails.rb, line 7
          def self.start(options_or_uri = {}, &block)
            yaml     = YAML.load_file(File.join(::Rails.root, "config", "amqp.yml"))
            settings = yaml.fetch(::Rails.env, Hash.new).symbolize_keys

            arg      = if options_or_uri.is_a?(Hash)
                         settings.merge(options_or_uri)[:uri]
                       else
                         settings[:uri] || options_or_uri
                       end

            EventMachine.next_tick do
              AMQP.start(arg, &block)
            end
          end