original_string: public function setEmail($email)
      {
          /**
           * @see Zend_Validate_EmailAddress
           */
          require_once 'Zend/Validate/EmailAddress.php';
          $validate = new Zend_Validate_EmailAddress();
          if (!$validate->isValid($email)) {
              /**
               * @see Zend_Feed_Builder_Exception
               */
              require_once 'Zend/Feed/Builder/Exception.php';
              throw new Zend_Feed_Builder_Exception("you have to set a valid email address into the email property");
          }
          $this->offsetSet('email', $email);
          return $this;
      }
code: public function setEmail($email)
      {
          /**
           * @see Zend_Validate_EmailAddress
           */
          require_once 'Zend/Validate/EmailAddress.php';
          $validate = new Zend_Validate_EmailAddress();
          if (!$validate->isValid($email)) {
              /**
               * @see Zend_Feed_Builder_Exception
               */
              require_once 'Zend/Feed/Builder/Exception.php';
              throw new Zend_Feed_Builder_Exception("you have to set a valid email address into the email property");
          }
          $this->offsetSet('email', $email);
          return $this;
      }
code_tokens: public function setEmail ( $ email ) { /**
           * @see Zend_Validate_EmailAddress
           */ require_once 'Zend/Validate/EmailAddress.php' ; $ validate = new Zend_Validate_EmailAddress ( ) ; if ( ! $ validate -> isValid ( $ email ) ) { /**
               * @see Zend_Feed_Builder_Exception
               */ require_once 'Zend/Feed/Builder/Exception.php' ; throw new Zend_Feed_Builder_Exception ( "you have to set a valid email address into the email property" ) ; } $ this -> offsetSet ( 'email' , $ email ) ; return $ this ; }
docstring: Sets the author's email
  
  @param  string $email
  @return Zend_Feed_Builder_Header
  @throws Zend_Feed_Builder_Exception
docstring_tokens: Sets the author s email