ContextMenuKindOf

type ContextMenuKindOf<TCtor extends AnyHandlerCtor> =
    InstanceType<TCtor> extends {
        __ctxKind?: infer Kind extends ContextMenuKind;
    }
        ? Kind
        : never;

type ContextMenuKindOf<TCtor extends AnyHandlerCtor> =
    InstanceType<TCtor> extends {
        __ctxKind?: infer Kind extends ContextMenuKind;
    }
        ? Kind
        : never;