package Ġcom . nov oda . aws . v 4 . signer . hash Ċ Ċ @ Experimental Unsigned Types Ċ internal Ġfun ĠU ByteArray . to HexString () Ġ= Ġjoin ToString ("") Ġ{ Ġit . toString ( 1 6 ). pad Start ( 2 , Ġ' 0 ') Ġ} Ċ