Provided by: libmongoc-doc_1.30.2-1_all 

SYNOPSIS
bool mongoc_optional_is_set (const mongoc_optional_t *opt); Returns whether a value for a mongoc_optional_t was set.
PARAMETERS
• opt: A mongoc_optional_t.
RETURNS
Returns true if a value was set, or false otherwise.
AUTHOR
MongoDB, Inc
COPYRIGHT
2009-present, MongoDB, Inc. 1.30.2 Mar 05, 2025 MONGOC_OPTIONAL_IS_SET(3)