updated libs (#218)

* updated libs

* fix linter

* fix linter

* fix linter

* fix linter

* relasing 1.2.6

* relasing 1.2.6

Author: sabuhish

fastapi_mail/fastmail.py

@@ -1,6 +1,6 @@
 from contextlib import contextmanager
-from email.utils import formataddr
 from email.message import EmailMessage, Message
+from email.utils import formataddr
 from typing import Any, Dict, Optional, Union
 
 import blinker

fastapi_mail/msg.py

@@ -6,7 +6,7 @@
 from email.mime.multipart import MIMEMultipart
 from email.mime.text import MIMEText
 from email.utils import formatdate, make_msgid
-from typing import Any, Optional, Union
+from typing import Any, Union
 
 from .schemas import MessageType, MultipartSubtypeEnum
 
@@ -107,9 +107,7 @@ def attach_alternative(self, message: MIMEMultipart) -> MIMEMultipart:
         message.attach(tmpmsg)
         return message
 
-    async def _message(
-        self, sender: Optional[str] = None
-    ) -> Union[EmailMessage, Message]:
+    async def _message(self, sender: str) -> Union[EmailMessage, Message]:
         """
         Creates the email message
         """
@@ -153,6 +151,3 @@ async def _message(
                 self.message.add_header(header_name, header_content)
 
         return self.message
-
-    async def as_string(self) -> Union[EmailMessage, Message]:
-        return await self._message()