Andrey Orlov

*(The description is a bit edited by @Totktonada.)* ---- If you add instances into the Tarantool configuration without specifying `sharding.roles`, other Tarantool instances will not start with the following error:...

I think it should be Topology instead of Tolopogy: https://github.com/tarantool/tarantool-python/blob/master/tarantool/connection_pool.py#L25