bt_trace_class_borrow_environment_entry_value_by_name_const(
const bt_trace_class *trace_class, const char *name);
-extern const bt_field_class *
-bt_trace_class_borrow_packet_header_field_class_const(
- const bt_trace_class *trace_class);
-
extern uint64_t bt_trace_class_get_stream_class_count(
const bt_trace_class *trace_class);