void

       MongoDB, Inc

       2009-present, MongoDB, Inc.

1.30.4                                            Jun 08, 2025                      MONGOC_READ_PREFS_ADD_TAG(3)

       This function shall add a tag to a read preference.

       • read_prefs: A mongoc_read_prefs_t.

       • tag: A bson_t.

          void
          mongoc_read_prefs_add_tag (mongoc_read_prefs_t *read_prefs, const bson_t *tag);