/**
* Loads the user for the given username.
*
* This method must throw UsernameNotFoundException if the user is not
* found.
*
* @param string $username The username
*
* @return UserInterface
*
* @see UsernameNotFoundException
*
* @throws UsernameNotFoundException if the user is not found
*/
public function loadUserByUsername($username)
{
return $this->authService->getUserByUsername($username);
}