pub unsafe extern "C" fn rocksdb_sst_file_metadata_get_directory(
file_meta: *mut rocksdb_sst_file_metadata_t
) -> *mut c_char
pub unsafe extern "C" fn rocksdb_sst_file_metadata_get_directory(
file_meta: *mut rocksdb_sst_file_metadata_t
) -> *mut c_char