##base _XpkSubBase
##bias 30
##public
XpksPackerInfo()()
XpksPackChunk(xpar)(a0)
XpksPackFree(xpar)(a0)
XpksPackReset(xpar)(a0)  
XpksUnpackChunk(xpar)(a0)
XpksUnpackFree(xpar)(a0) 
##end