def hex_pair
import qasim-bend-kit@0.1.0.2/libs/AES256GCM.bend as AES256GCMimport Base
286def hex_pair(first: Char, second: Char) -> Maybe<&2, U32>:
287 hex_pair.combine(hex_nibble(Char.to_u32(first)),
288 hex_nibble(Char.to_u32(second)))