Drive.eject

void eject(gio.types.MountUnmountFlags flags,  gio.cancellable.Cancellable cancellable =  null,  gio.types.AsyncReadyCallback callback =  null)

Asynchronously ejects a drive.

When the operation is finished, callback will be called. You can then call gio.drive.Drive.ejectFinish to obtain the result of the operation.

`flags`	flags affecting the unmount if required for eject
`cancellable`	optional #GCancellable object, null to ignore.
`callback`	a #GAsyncReadyCallback, or null.