Gio.Mount.prototype.eject

function eject(flags: Gio.MountUnmountFlags, cancellable: Gio.Cancellable, callback: Gio.AsyncReadyCallback): void {
    // Gjs wrapper for g_mount_eject()
}

Ejects a mount. This is an asynchronous operation, and is finished by calling Gio.Mount.prototype.eject_finish with the mount and Gio.AsyncResult data returned in the callback.

flags: flags affecting the unmount if required for eject
cancellable: optional Gio.Cancellable object, null to ignore.
callback: a Gio.AsyncReadyCallback, or null.