How to set namespace in packet of socketIO using unity3d

I am using SocketIO plugin for making of multiplayer game in unity3d, On server side i use node.js.

Now, i am following steps given by lockstep.io. Here is reference link : lockstep.io - npm

My question is how to set namespace in packet when packet data encode/decode/emit process.

Thank you in advance.

If you can open it and extract it, then just navigate to the folder where the namespace is and then edit it.