Gdn_Email::setEmailTemplate PHP Method

    public function setEmailTemplate($emailTemplate)
    {
        $this->emailTemplate = $emailTemplate;
        // if we change email templates after construct, inform it of the current format
        if ($this->format) {
            $this->setFormat($this->format);
        }
        return $this;
    }

 /**
  * Send forgot password email.
  *
  * @param string $Email
  * @return bool
  */
 public function passwordRequest($Email)
 {
     if (!$Email) {
         return false;
     }
     $Users = $this->getWhere(['Email' => $Email])->resultObject();
     if (count($Users) == 0) {
         // Check for the username.
         $Users = $this->getWhere(['Name' => $Email])->resultObject();
     }
     $this->EventArguments['Users'] =& $Users;
     $this->EventArguments['Email'] = $Email;
     $this->fireEvent('BeforePasswordRequest');
     if (count($Users) == 0) {
         $this->Validation->addValidationResult('Name', "Couldn't find an account associated with that email/username.");
         return false;
     }
     $NoEmail = true;
     foreach ($Users as $User) {
         if (!$User->Email) {
             continue;
         }
         $Email = new Gdn_Email();
         // Instantiate in loop to clear previous settings
         $PasswordResetKey = betterRandomString(20, 'Aa0');
         $PasswordResetExpires = strtotime('+1 hour');
         $this->saveAttribute($User->UserID, 'PasswordResetKey', $PasswordResetKey);
         $this->saveAttribute($User->UserID, 'PasswordResetExpires', $PasswordResetExpires);
         $AppTitle = c('Garden.Title');
         $Email->subject('[' . $AppTitle . '] ' . t('Reset Your Password'));
         $Email->to($User->Email);
         $emailTemplate = $Email->getEmailTemplate()->setTitle(t('Reset Your Password'))->setMessage(sprintf(t('We\'ve received a request to change your password.'), $AppTitle))->setButton(externalUrl('/entry/passwordreset/' . $User->UserID . '/' . $PasswordResetKey), t('Change My Password'));
         $Email->setEmailTemplate($emailTemplate);
         try {
             $Email->send();
         } catch (Exception $e) {
             if (debug()) {
                 throw $e;
             }
         }
         $NoEmail = false;
     }
     if ($NoEmail) {
         $this->Validation->addValidationResult('Name', 'There is no email address associated with that account.');
         return false;
     }
     return true;
 }