BT_ASSERT_PRE_NON_NULL(event, "Event");
BT_ASSERT_PRE_NON_NULL(field_wrapper, "Header field");
BT_ASSERT_PRE_EVENT_HOT(event);
stream_class = bt_event_class_borrow_stream_class_inline(event->class);
BT_ASSERT_PRE(stream_class->event_header_fc,
BT_ASSERT_PRE_NON_NULL(event, "Event");
BT_ASSERT_PRE_NON_NULL(field_wrapper, "Header field");
BT_ASSERT_PRE_EVENT_HOT(event);
stream_class = bt_event_class_borrow_stream_class_inline(event->class);
BT_ASSERT_PRE(stream_class->event_header_fc,