How to transmit user-defined object between client and server?

kwiyi woo kwiyiwoo at
Thu Jun 3 03:37:06 UTC 2004

I need to create a client and server application. I need to exchange information between client and server. I know I can use socketstream to transmit string between clent and server. 
But I need to exchange info which is not a string, but an user-defined object. I cannot find corresponding class in Squeak 3.6. The only thing I find might be helpful is class ArbitraryObjectSocket. But when I tried to initialize it by 
arbisocket := ArbitraryObjectSocket on: aSocket. 
it threw error message. 
Does anyone know how to exchange object and cast it in this situation?

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