fully document all the tchannel error
fully document all the tchannel error

bunnyblue/tchannel,vanloswang/tchannel,Zirpon/tchannel,benfleis/tchannel,sasa233/tchannel,hustxiaoc/tchannel,i/tchannel,benfleis/tchannel,i/tchannel,chenwenbin928/tchannel,i/tchannel,vanloswang/tchannel,bunnyblue/tchannel,sasa233/tchannel,chenwenbin928/tchannel,savaki/tchannel,Zirpon/tchannel,chenwenbin928/tchannel,hustxiaoc/tchannel,benfleis/tchannel,RyanTech/tchannel,bunnyblue/tchannel,savaki/tchannel,vanloswang/tchannel,Zirpon/tchannel,RyanTech/tchannel,RyanTech/tchannel,hustxiaoc/tchannel,sasa233/tchannel,savaki/tchannel