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