pub unsafe extern "C" fn fdb_transaction_get_blob_granule_ranges(
    tr: *mut FDBTransaction,
    begin_key_name: *const u8,
    begin_key_name_length: c_int,
    end_key_name: *const u8,
    end_key_name_length: c_int,
    rangeLimit: c_int
) -> *mut FDBFuture