lib/ExternalUriGenerator/UriCollection.php
public function get($name)
    {
        return isset($this->uris[$name]) ? $this->uris[$name] : null;
    }
public function get($name)
    {
        return isset($this->uris[$name]) ? $this->uris[$name] : null;
    }
Gets a uri by name.

@param string $name The uri name

@return UriInterface|null A Uri instance or null when not found