GPtrArray *environment; /* Array of pointers to environment_variable */
GPtrArray *clocks; /* Array of pointers to bt_ctf_clock */
GPtrArray *stream_classes; /* Array of ptrs to bt_ctf_stream_class */
GPtrArray *streams; /* Array of ptrs to bt_ctf_stream */
GPtrArray *environment; /* Array of pointers to environment_variable */
GPtrArray *clocks; /* Array of pointers to bt_ctf_clock */
GPtrArray *stream_classes; /* Array of ptrs to bt_ctf_stream_class */
GPtrArray *streams; /* Array of ptrs to bt_ctf_stream */