public Url::toString($collect_bubbleable_metadata = FALSE)
Generates the string URL representation for this Url object.
For an external URL, the string will contain the input plus any query string or fragment specified by the options array.
If this Url object was constructed from a Drupal route or from an internal URI (URIs using the internal:, base:, or entity: schemes), the returned string will either be a relative URL like /node/1 or an absolute URL like http://example.com/node/1 depending o