property :limit_nofile, Integer
property :limit_as, [Integer, String]
property :limit_cpu, [Integer, String]
+property :limit_core, [Integer, String]
property :memory_low, [Integer, String]
property :memory_high, [Integer, String]
property :memory_max, [Integer, String]
property :group, String
property :dynamic_user, [true, false]
property :working_directory, String
+property :umask, String
property :exec_start_pre, [String, Array]
property :exec_start, [String, Array]
property :exec_start_post, [String, Array]
property :runtime_max_sec, Integer
property :runtime_directory, String
property :runtime_directory_mode, Integer
+property :runtime_directory_preserve, [true, false, String]
property :state_directory, String
property :state_directory_mode, Integer
property :cache_directory, String
property :restrict_realtime, [true, false]
property :restrict_suid_sgid, [true, false]
property :remove_ipc, [true, false]
+property :stop_when_unneeded, [true, false]
property :system_call_filter, [String, Array]
property :system_call_architectures, [String, Array]
property :tasks_max, Integer