How to use the fasteners.process_lock._InterProcessLock function in fasteners

class _WindowsLock(_InterProcessLock):
    """Interprocess lock implementation that works on windows systems."""

    @staticmethod
    def _trylock(lockfile):
        fileno = lockfile.fileno()
        msvcrt.locking(fileno, msvcrt.LK_NBLCK, 1)

    @staticmethod
    def _unlock(lockfile):
        fileno = lockfile.fileno()
        msvcrt.locking(fileno, msvcrt.LK_UNLCK, 1)


class _FcntlLock(_InterProcessLock):
    """Interprocess lock implementation that works on posix systems."""

    @staticmethod
    def _trylock(lockfile):
        fcntl.lockf(lockfile, fcntl.LOCK_EX | fcntl.LOCK_NB)

    @staticmethod
    def _unlock(lockfile):
        fcntl.lockf(lockfile, fcntl.LOCK_UN)


if os.name == 'nt':
    import msvcrt
    InterProcessLock = _WindowsLock
else:
    import fcntl

def trylock(self):
        self._trylock(self.lockfile)

    def unlock(self):
        self._unlock(self.lockfile)

    @staticmethod
    def _trylock():
        raise NotImplementedError()

    @staticmethod
    def _unlock():
        raise NotImplementedError()


class _WindowsLock(_InterProcessLock):
    """Interprocess lock implementation that works on windows systems."""

    @staticmethod
    def _trylock(lockfile):
        fileno = lockfile.fileno()
        msvcrt.locking(fileno, msvcrt.LK_NBLCK, 1)

    @staticmethod
    def _unlock(lockfile):
        fileno = lockfile.fileno()
        msvcrt.locking(fileno, msvcrt.LK_UNLCK, 1)


class _FcntlLock(_InterProcessLock):
    """Interprocess lock implementation that works on posix systems."""