bson_iter_array(3) on Linux
The text 7169255976ca, as Debian 9 (Stretch) shipped it.
The bson_iter_array() function shall retrieve the raw buffer of a sub-array from iter. iter MUST be on an element that is of type BSON_TYPE_ARRAY. This can be verified with bson_iter_type() or the BSON_ITER_HOLDS_ARRAY() macro.