dismiss Lost Devices
Called by the scan engine at regular intervals to allow the plugin to take action about possible devices not seen since too long.
Refer to the method ADevicePlugin.removeLostDevices as a useful help if you want to design your own implementation.
The default implementation is to forget devices not seen since fr.maxcom.beacon.configuration.LossSettings.timeoutMillis.
Parameters
scan Context
The scan context is a primary source to get configuration parameters, if needed, to introduce in a timeout computing.
action Time Millis
The instant when the cleanup is initiated. For consistency, it is the same value for all plugins and processors solicited in a row.