pub unsafe extern "C" fn fdb_database_purge_blob_granules( db: *mut FDBDatabase, begin_key_name: *const u8, begin_key_name_length: c_int, end_key_name: *const u8, end_key_name_length: c_int, purge_version: i64, force: fdb_bool_t) -> *mut FDBFuture