def sized
import bend-collections@1.0.0.0/spec/crypto/keccak/main.bend as BendCollectionsimport Base
78def sized(round_count: Nat, +length: Nat, pair: Array<U32> & U32) -> Maybe<&1,Array<U32>>:
79 (a,capacity) = pair
80 checked(round_count,Nat.is_le(length,Nat.mul(4n,U32.to_nat(capacity))),a,length)