pub unsafe extern "C" fn fdb_transaction_read_blob_granules_description(
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,
begin_version: i64,
read_version: i64,
read_version_out: *mut i64
) -> *mut FDBFuture