interface{}
any
Everywhere including examples, external interop APIs, bindings generators code and in other valuable places. A couple of `interface{}` usages are intentionally left in the CHANGELOG.md, documentation and tests.
Signed-off-by: Elizaveta Chichindaeva <elizaveta@nspcc.ru>
And write a marshaller for EventType, it'll be reused by the Notification subsystem.