proc spawnResult(t: PType; inParallel: bool): TSpawnResult {.
    ...raises: [Exception], tags: [RootEffect], forbids: [].}

proc wrapProcForSpawn(g: ModuleGraph; idgen: IdGenerator; owner: PSym;
                      spawnExpr: PNode; retType: PType; barrier: PNode = nil;
                      dest: PNode = nil): PNode {....raises: [Exception,
    ValueError, KeyError, IOError, ERecoverableError, OSError], tags: [
    RootEffect, ReadDirEffect, WriteIOEffect, ReadIOEffect, ReadEnvEffect],
    forbids: [].}