/**
* Adds a method to interface.
*
* @param InterfaceMethodNode|string $method
* The method to append. Can either be an existing method, or a string (a
* new public method will be created with that name).
*
* @return $this
*/
public function appendMethod($method)
{
if (is_string($method)) {
$method = InterfaceMethodNode::create($method);
}
$this->statements->lastChild()->before($method);
FormatterFactory::format($this);
return $this;
}
