Fix visit method definitions
Fix visit method definitions

guoyiteng/braid,cucapra/braid,guoyiteng/braid,cucapra/braid,guoyiteng/braid,cucapra/braid,cucapra/braid,guoyiteng/braid,guoyiteng/braid,cucapra/braid,guoyiteng/braid,cucapra/braid