proc `=copy`(dest: var SpinLock; source: SpinLock) {.error.}

proc `=sink`(dest: var SpinLock; source: SpinLock) {.error.}

proc acquire(s: var SpinLock) {....raises: [], tags: [], forbids: [].}

proc release(s: var SpinLock) {....raises: [], tags: [], forbids: [].}

proc tryAcquire(s: var SpinLock): bool {....raises: [], tags: [], forbids: [].}

template withLock(a: SpinLock; body: untyped)