extern void bt_trace_borrow_environment_entry_by_index(
struct bt_trace *trace, uint64_t index,
extern void bt_trace_borrow_environment_entry_by_index(
struct bt_trace *trace, uint64_t index,
struct bt_trace *trace, const char *name);
extern struct bt_field_class *bt_trace_borrow_packet_header_field_class(
struct bt_trace *trace, const char *name);
extern struct bt_field_class *bt_trace_borrow_packet_header_field_class(