LdapTools\DomainConfiguration::getUsername PHP Method

    public function getUsername()
    {
        return $this->config['username'];
    }

 /**
  * {@inheritdoc}
  */
 public function connect($username = null, $password = null, $anonymous = false, $server = null)
 {
     $this->initiateLdapConnection($server);
     $username = $this->usernameFormatter->getUsername($username ?: $this->config->getUsername());
     $password = $password ?: $this->config->getPassword();
     $this->bind($username, $password, $anonymous);
     $this->lastActivity = new \DateTime();
     return $this;
 }