Note: `msgData` can be from either D_MSGINFO or D_DRAFTINFO.

01483                                                         :
        """

        Note: `msgData` can be from either D_MSGINFO or D_DRAFTINFO.
        """
        # TODO: Automatically detect if it's a draft or not?
        # TODO Handle this better?
        self._parent = parent
        self._account = self._parent._account
        
        self.author = msgData[MI_AUTHORFIRSTNAME]
        self.id = msgData[MI_MSGID]
        self.number = msgData[MI_NUM]
        self.subject = msgData[MI_SUBJECT]
        self.to = msgData[MI_TO]
        self.cc = msgData[MI_CC]
        self.bcc = msgData[MI_BCC]
        self.sender = msgData[MI_AUTHOREMAIL]
        
        self.attachments = [GmailAttachment(self, attachmentInfo)
                            for attachmentInfo in msgData[MI_ATTACHINFO]]

        # TODO: Populate additional fields & cache...(?)

        # TODO: Handle body differently if it's from a draft?
        self.isDraft = isDraft
        
        self._source = None


    def _getSource(self):