Normalise one option value, raising message when it is not a member.
The enum’s own ValueError names the class rather than the accepted spellings, and the accepted spellings are what a caller needs, so every boundary in cadjoint converts through here with the message its tests (and its users) already know.
Parameters
Name
Type
Description
Default
option
type[_Option]
A string enum from this module.
required
value
Any
The user’s spelling — a member, or the plain string.
required
message
str
The error text to raise instead of the enum’s own.