Merges the URL options with any currently set.
In the case of conflict with existing options, the new options will replace the existing options.
array $options: The array of options. See \Drupal\Core\Url::fromUri() for details on what it contains.
$this
public function mergeOptions($options) { $this->options = NestedArray::mergeDeep($this->options, $options); return $this; }