How to use the billiard.util._args_from_interpreter_flags function in billiard

def get_command_line(**kwds):
    '''
    Returns prefix of command line used for spawning a child process
    '''
    if getattr(sys, 'frozen', False):
        return ([sys.executable, '--billiard-fork'] +
                ['%s=%r' % item for item in kwds.items()])
    else:
        prog = 'from billiard.spawn import spawn_main; spawn_main(%s)'
        prog %= ', '.join('%s=%r' % item for item in kwds.items())
        opts = util._args_from_interpreter_flags()
        return [_python_exe] + opts + ['-c', prog, '--billiard-fork']

warnings.warn('resource_tracker: process died unexpectedly, '
                              'relaunching.  Some resources might leak.')

            fds_to_pass = []
            try:
                fds_to_pass.append(sys.stderr.fileno())
            except Exception:
                pass
            cmd = 'from multiprocessing.resource_tracker import main;main(%d)'
            r, w = os.pipe()
            try:
                fds_to_pass.append(r)
                # process will out live us, so no need to wait on pid
                exe = spawn.get_executable()
                args = [exe] + util._args_from_interpreter_flags()
                args += ['-c', cmd % r]
                # bpo-33613: Register a signal mask that will block the signals.
                # This signal mask will be inherited by the child that is going
                # to be spawned and will protect the child from a race condition
                # that can make the child die before it registers signal handlers
                # for SIGINT and SIGTERM. The mask is unregistered after spawning
                # the child.
                try:
                    if _HAVE_SIGMASK:
                        signal.pthread_sigmask(signal.SIG_BLOCK, _IGNORED_SIGNALS)
                    pid = util.spawnv_passfds(exe, args, fds_to_pass)
                finally:
                    if _HAVE_SIGMASK:
                        signal.pthread_sigmask(signal.SIG_UNBLOCK, _IGNORED_SIGNALS)
            except:
                os.close(w)

with socket.socket(socket.AF_UNIX) as listener:
                address = connection.arbitrary_address('AF_UNIX')
                listener.bind(address)
                os.chmod(address, 0o600)
                listener.listen()

                # all client processes own the write end of the "alive" pipe;
                # when they all terminate the read end becomes ready.
                alive_r, alive_w = os.pipe()
                try:
                    fds_to_pass = [listener.fileno(), alive_r]
                    cmd %= (listener.fileno(), alive_r, self._preload_modules,
                            data)
                    exe = spawn.get_executable()
                    args = [exe] + util._args_from_interpreter_flags()
                    args += ['-c', cmd]
                    spawnv_passfds(exe, args, fds_to_pass)
                except:
                    os.close(alive_w)
                    raise
                finally:
                    os.close(alive_r)
                self._forkserver_address = address
                self._forkserver_alive_fd = alive_w

the semaphore created by its parent.'''
        with self._lock:
            if self._fd is not None:
                return
            fds_to_pass = []
            try:
                fds_to_pass.append(sys.stderr.fileno())
            except Exception:
                pass
            cmd = 'from billiard.semaphore_tracker import main;main(%d)'
            r, w = os.pipe()
            try:
                fds_to_pass.append(r)
                # process will out live us, so no need to wait on pid
                exe = spawn.get_executable()
                args = [exe] + util._args_from_interpreter_flags()
                args += ['-c', cmd % r]
                spawnv_passfds(exe, args, fds_to_pass)
            except:
                os.close(w)
                raise
            else:
                self._fd = w
            finally:
                os.close(r)