const char *

       MongoDB, Inc

       2009-present, MongoDB, Inc.

1.30.4                                            Jun 08, 2025                  MONGOC_WRITE_CONCERN_GET_WTAG(3)

       A string containing the wtag setting if it has been set. Otherwise returns NULL.

       • write_concern: A mongoc_write_concern_t.

       Returns a string which should not be modified or freed, or NULL.

          const char *
          mongoc_write_concern_get_wtag (const mongoc_write_concern_t *write_concern);