A failure reason given when an unknown key is found in a ConfigObject. The failure is raised when a key of a
ConfigObject is not mapped into a field of a given type and the allowUnknownKeys property of the ProductHint
for the type in question is false.
A failure reason given when an unknown key is found in a
ConfigObject. The failure is raised when a key of aConfigObjectis not mapped into a field of a given type and theallowUnknownKeysproperty of theProductHintfor the type in question isfalse.the unknown key