-extern int bt_field_string_set_value(struct bt_field *field, const char *value);
-
-extern int bt_field_string_append(struct bt_field *field, const char *value);
-
-extern int bt_field_string_append_with_length(struct bt_field *field,
- const char *value, uint64_t length);
-
-extern int bt_field_string_clear(struct bt_field *field);
-