original_string: public function setAuthenticationUrl($authenticationUrl)
      {
        if(!is_string($authenticationUrl) || strlen(trim($authenticationUrl)) == 0)
          throw new InvalidArgumentException(__METHOD__ . '; Invalid authentication url, must be a non empty string');
  
        $this->authenticationUrl = $authenticationUrl;
      }
code: public function setAuthenticationUrl($authenticationUrl)
      {
        if(!is_string($authenticationUrl) || strlen(trim($authenticationUrl)) == 0)
          throw new InvalidArgumentException(__METHOD__ . '; Invalid authentication url, must be a non empty string');
  
        $this->authenticationUrl = $authenticationUrl;
      }
code_tokens: public function setAuthenticationUrl ( $ authenticationUrl ) { if ( ! is_string ( $ authenticationUrl ) || strlen ( trim ( $ authenticationUrl ) ) == 0 ) throw new InvalidArgumentException ( __METHOD__ . '; Invalid authentication url, must be a non empty string' ) ; $ this -> authenticationUrl = $ authenticationUrl ; }
docstring: Set authentication url of this Authenticator
  
  @param string $authenticationUrl
  @return void
docstring_tokens: Set authentication url of this Authenticator