mongoc_write_concern_set_wtag()
Synopsis
void
mongoc_write_concern_set_wtag (mongoc_write_concern_t *write_concern,
                               const char             *tag);Parameters
| write_concern | |
| tag | A string containing the write tag. | 
Description
Sets the write tag that must be satistified for the write to indicate success. Write tags are preset write concerns configured on your MongoDB server. See mongoc_write_concern_t for more information on this setting.