Provided by: libbson-doc_1.9.2-1_all 
NAME
bson_iter_key - bson_iter_key()
SYNOPSIS
const char *
bson_iter_key (const bson_iter_t *iter);
PARAMETERS
• iter: A bson_iter_t.
DESCRIPTION
Fetches the key for the current element observed by iter.
RETURNS
A string which should not be modified or freed.
AUTHOR
MongoDB, Inc
COPYRIGHT
2018, MongoDB, Inc