Starts the session.
@api
boolean True if started.
\RuntimeException If something goes wrong starting the session.
Overrides MockArraySessionStorage::start
public function start() {
if ($this->started) {
return true;
}
if (!$this->id) {
$this->id = $this
->generateId();
}
$this
->read();
$this->started = true;
return true;
}