Raised by Cartouche.Hex decode/encode bang functions when input is not
valid hex (wrong length, non-hex characters, missing/extra 0x prefix, etc.).
Public callers can rescue Cartouche.Hex.InvalidHex to handle these.
Raised by Cartouche.Hex decode/encode bang functions when input is not
valid hex (wrong length, non-hex characters, missing/extra 0x prefix, etc.).
Public callers can rescue Cartouche.Hex.InvalidHex to handle these.