using afIoc::NotFoundErr** Contribute to set application default '@Config' values, overriding any factory defaults. **** @uses a MappedConfig of 'Str:Obj' of IDs to Objs. Obj values must be immutable.constmixin ApplicationDefaults { @NoDocabstract Str:Obj? config()}internalconstclass ApplicationDefaultsImpl : ApplicationDefaults {overrideconst Str:Obj? confignew make(Str:Obj? config){this.config = config.toImmutable}}