PRIORITY_LOW = 0'i64

PRIORITY_NORMAL = 1'i64

PRIORITY_HIGH = 2'i64

proc start(self: Thread; instance: Object; methodd: string;
          userdata: Variant = newVariant(); priority: int64 = 1'i64): Error {.
gcsafe,
    locks: 0, raises: [], tags: []
.}

proc getId(self: Thread): string {.
gcsafe, locks: 0, raises: [], tags: []
.}

proc isActive(self: Thread): bool {.
gcsafe, locks: 0, raises: [], tags: []
.}

proc waitToFinish(self: Thread): Variant {.
gcsafe, locks: 0, raises: [], tags: []
.}