mongoc_write_concern_get_wtag − mongoc_write_concern_get_wtag()
const char * mongoc_write_concern_get_wtag (const mongoc_write_concern_t *write_concern);
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write_concern: A mongoc_write_concern_t. |
A string containing the wtag setting if it has been set. Otherwise returns NULL.
Returns a string which should not be modified or freed, or NULL.
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