- int fds[], unsigned n_fds,
- char **environment,
- bool apply_permissions,
- bool apply_chroot,
- bool apply_tty_stdin,
- bool confirm_spawn,
- struct CGroupBonding *cgroup_bondings,
- struct CGroupAttribute *cgroup_attributes,
- const char *cgroup_suffix,
- const char *unit_id,
- int pipe_fd[2],