```ruby
require 'plezi/websockets/message_dispatch' unless defined?(::Plezi::Base::MessageDispatch)

module Plezi
  protected

  @plezi_finalize = nil
  def plezi_finalize
    if @plezi_finalize.nil?
      @plezi_finalize = true
      @plezi_finalize = 1
    end
  end
  @plezi_initialize = nil
  def self.plezi_initialize
    if @plezi_initialize.nil?
      @plezi_initialize = true
      @plezi_autostart = true if @plezi_autostart.nil?
      at_exit do
        next if @plezi_autostart == false
        ::Iodine::Rack.app = ::Plezi.app
        ::Iodine.start
      end
    end
    true
  end
end

::Iodine.threads ||= 16
::Iodine.processes ||= 1 unless ENV['PL_REDIS_URL'.freeze]
::Iodine.run { ::Plezi::Base::MessageDispatch._init }
```

Add redis gem missing warning
user
```ruby
require 'plezi/websockets/message_dispatch' unless defined?(::Plezi::Base::MessageDispatch)

module Plezi
  protected

  @plezi_finalize = nil
  def plezi_finalize
    if @plezi_finalize.nil?
      @plezi_finalize = true
      @plezi_finalize = 1
    end
  end
  @plezi_initialize = nil
  def self.plezi_initialize
    if @plezi_initialize.nil?
      @plezi_initialize = true
      @plezi_autostart = true if @plezi_autostart.nil?
      puts "WARNNING: auto-scaling with redis is set using ENV['PL_REDIS_URL'.freeze]\r\n           but the Redis gem isn't included! - SCALING IS IGNORED!" if ENV['PL_REDIS_URL'.freeze] && !defined?(::Redis)
      at_exit do
        next if @plezi_autostart == false
        ::Iodine::Rack.app = ::Plezi.app
        ::Iodine.start
      end
    end
    true
  end
end

::Iodine.threads ||= 16
::Iodine.processes ||= 1 unless ENV['PL_REDIS_URL'.freeze]
::Iodine.run { ::Plezi::Base::MessageDispatch._init }
```
assistant