original_string: protected function _prepareRecipientAddresses($email)
      {
          $to = $email->getTo();
          $cc = $email->getCc();
          $bcc = $email->getBcc();
  
          return array_merge(array_keys($to), array_keys($cc), array_keys($bcc));
      }
code: protected function _prepareRecipientAddresses($email)
      {
          $to = $email->getTo();
          $cc = $email->getCc();
          $bcc = $email->getBcc();
  
          return array_merge(array_keys($to), array_keys($cc), array_keys($bcc));
      }
code_tokens: protected function _prepareRecipientAddresses ( $ email ) { $ to = $ email -> getTo ( ) ; $ cc = $ email -> getCc ( ) ; $ bcc = $ email -> getBcc ( ) ; return array_merge ( array_keys ( $ to ) , array_keys ( $ cc ) , array_keys ( $ bcc ) ) ; }
docstring: Prepares the recipient email addresses.
  
  @param \Cake\Mailer\Email $email Email instance
  @return array
docstring_tokens: Prepares the recipient email addresses .