```ruby
module EventMachine
  module C2DM
    class RedisStore
      KEY = "em-c2dm:auth_token"

      def initialize(redis)
        @redis = if redis.is_a?(String) || redis.nil?
          connect(redis)
        else
          redis
        end
      end

      def set(token)
        @redis.set(KEY, token)
      end

      def get
        @redis.get(KEY)
      end

      def redis
        @redis
      end

      private

      def connect(url = nil)
        url = URI(url || "redis://127.0.0.1:6379/0")
        EM::Protocols::Redis.connect(
          :host     => url.host,
          :port     => url.port,
          :password => url.password,
          :db       => url.path[1..-1].to_i
        )
      end
    end
  end
end
```

Use uniform language for token
user
```ruby
module EventMachine
  module C2DM
    class RedisStore
      KEY = "em-c2dm:token"

      def initialize(redis)
        @redis = if redis.is_a?(String) || redis.nil?
          connect(redis)
        else
          redis
        end
      end

      def set(token)
        @redis.set(KEY, token)
      end

      def get
        @redis.get(KEY)
      end

      def redis
        @redis
      end

      private

      def connect(url = nil)
        url = URI(url || "redis://127.0.0.1:6379/0")
        EM::Protocols::Redis.connect(
          :host     => url.host,
          :port     => url.port,
          :password => url.password,
          :db       => url.path[1..-1].to_i
        )
      end
    end
  end
end
```
assistant