def absorb
import bend-collections@1.0.0.0/spec/crypto/keccak/main.bend as BendCollectionsimport Base
import bend-collections@1.0.0.0/src/crypto/keccak/types.bend as T
54def absorb(+round_count: Nat, a: Array<U32>, +index: U32, s: T.State) -> Array<U32> & T.State:
55 gather(round_count,33n,index,1,False{},0n,s,Nil{},Array.get(U32,a,index))