Upgrade from 2.x to 4.x version issue

[CapLek]

Currently we have a nest.js server with an old 2.x socket.io package. The goal is to upgrade to the latest version of socket.io by installing @nestjs/platform-socket.io v 8.4.6. However, there is some logic which should be updated as well.

We need to report a "connect_error" and then disconnect client under some conditions.
For 2.x version we did something like

client.error(errorObject)
client.disconnect()

For 4.x it does not seem to work. When I`m doing

client._error(errorObject)
client.disconnect()

client receives "connect_error" but does not receive "disconnect" event.

What am I doing wrong?