reqres: add sendParts
reqres: add sendParts

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