save_async

Description:

public async bool save_async (Cancellable? cancellable) throws Error

Saves the connection to disk if the connection has changes that have not yet been written to disk, or if the connection has never been saved.

this	the RemoteConnection
cancellable	a Cancellable, or null
callback	callback to be called when the save operation completes
user_data	caller-specific data passed to `callback`