+ :is => %w[on-success on-failure on-abnormal on-watchdog on-abort always]
+property :private_tmp, [true, false]
+property :private_devices, [true, false]
+property :private_network, [true, false]
+property :protect_system, [TrueClass, FalseClass, String]
+property :protect_home, [TrueClass, FalseClass, String]
+property :restrict_address_families, [String, Array]
+property :no_new_privileges, [true, false]
+property :tasks_max, Integer
+property :timeout_sec, Integer
+property :pid_file, String
+property :nice, Integer
+property :io_scheduling_class, [Integer, String]
+property :io_scheduling_priority, Integer
+property :kill_mode, String,
+ :is => %w[control-group process mixed none]