proc checked_resource(resource: int): cint {....raises: [ValueError], tags: [],
    forbids: [].}

proc getpagesize(): int {....raises: [], tags: [], forbids: [].}

proc getrlimit(resource: int): py_rlimit {....raises: [ValueError, PyOSError],
    tags: [], forbids: [].}

proc getrusage(who: int): struct_rusage {....raises: [ValueError, PyOSError],
    tags: [], forbids: [].}

proc prlimit(pid: int; resource: int): py_rlimit {.discardable,
    ...raises: [ValueError, PyOSError], tags: [], forbids: [].}

template prlimit[T: py_rlimit_abc | py_rlimit](pid: int; resource: int;
    limits: T): py_rlimit

template setrlimit[T: py_rlimit_abc | py_rlimit](resource: int; limits: T)