dreame.vacuum.mb1808 not supported on firmware 4.1.8_1817
The plugin seems to be having issues with the dreame.vacuum.mb1808 on firmware 4.1.8_1817.
this was a new device, working fine in Mi Home app, used the auto discovery to get the token. 

Homebridge then loads with an error saying device not supported, and shows a single switch, which doesn't do anything in home and doesn't communicate to the vacuum.

Logs say this.

[11/12/2021, 3:30:26 PM] [miot] [Mi Robot Vacuum-Mop] Got device configuration, initializing device with name: Mi Robot Vacuum-Mop
[11/12/2021, 3:30:26 PM] [miot] [Mi Robot Vacuum-Mop] Device model known: dreame.vacuum.mb1808! Creating device!
[11/12/2021, 3:30:26 PM] [miot] [Mi Robot Vacuum-Mop] Initializing device properties
[11/12/2021, 3:30:26 PM] [miot] [Mi Robot Vacuum-Mop] Initializing device actions
[11/12/2021, 3:30:26 PM] [miot] [Mi Robot Vacuum-Mop] Device not supported! Using a generic device with limited properties! Consider requesting device support!
[11/12/2021, 3:30:26 PM] [miot] [Mi Robot Vacuum-Mop] Initializing accessory!
[11/12/2021, 3:30:26 PM] [miot] [Mi Robot Vacuum-Mop] Accessory successfully initialized!