🎉 init feishu adapter

packages/nonebot-adapter-feishu/nonebot/adapters/feishu/__init__.py

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+from .bot import Bot
+from .message import Message, MessageSegment
+from .event import Event

packages/nonebot-adapter-feishu/nonebot/adapters/feishu/bot.py

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+from typing import Any, Union, Optional, TYPE_CHECKING
+
+from nonebot.log import logger
+from nonebot.message import handle_event
+from nonebot.adapters import Bot as BaseBot
+from nonebot.exception import RequestDenied
+
+from .event import Event
+from .message import Message, MessageSegment
+
+if TYPE_CHECKING:
+    from nonebot.drivers import Driver
+
+
+class Bot(BaseBot):
+    """
+    飞书 协议 Bot 适配。继承属性参考 `BaseBot <./#class-basebot>`_ 。
+    """
+
+    @property
+    def type(self) -> str:
+        return "feishu"
+
+    @classmethod
+    async def check_permission(cls, driver: "Driver", connection_type: str,
+                               headers: dict, body: Optional[dict]) -> str:
+        # raise RequestDenied(401, "reason")
+        return "bot id"
+
+    async def handle_message(self, message: dict):
+        try:
+            event = Event.parse_obj(message)
+            await handle_event(self, event)
+        except Exception as e:
+            logger.opt(colors=True, exception=e).error(
+                f"<r><bg #f8bbd0>Failed to handle event. Raw: {message}</bg #f8bbd0></r>"
+            )
+
+    async def _call_api(self, api: str, **data) -> Any:
+        raise NotImplementedError
+
+    async def send(self, event: Event, message: Union[str, Message,
+                                                      MessageSegment],
+                   **kwargs) -> Any:
+        raise NotImplementedError

packages/nonebot-adapter-feishu/nonebot/adapters/feishu/event.py

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+from pydantic import BaseModel
+from nonebot.adapters import Event as BaseEvent
+
+from .message import Message
+
+
+class Event(BaseEvent):
+
+    def get_type(self) -> str:
+        raise NotImplementedError
+
+    def get_event_name(self) -> str:
+        raise NotImplementedError
+
+    def get_event_description(self) -> str:
+        return str(self.dict())
+
+    def get_message(self) -> Message:
+        raise NotImplementedError
+
+    def get_plaintext(self) -> str:
+        raise NotImplementedError
+
+    def get_user_id(self) -> str:
+        raise NotImplementedError
+
+    def get_session_id(self) -> str:
+        raise NotImplementedError
+
+    def is_tome(self) -> bool:
+        return False

packages/nonebot-adapter-feishu/nonebot/adapters/feishu/message.py

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+from typing import Union, Mapping, Iterable
+from nonebot.adapters import Message as BaseMessage, MessageSegment as BaseMessageSegment
+
+
+class MessageSegment(BaseMessageSegment):
+
+    def __str__(self) -> str:
+        raise NotImplementedError
+
+    def __add__(self, other) -> "Message":
+        return Message(self) + other
+
+    def __radd__(self, other) -> "Message":
+        return Message(other) + self
+
+    def is_text(self) -> bool:
+        raise NotImplementedError
+
+
+class Message(BaseMessage):
+
+    @staticmethod
+    def _construct(
+        msg: Union[str, Mapping,
+                   Iterable[Mapping]]) -> Iterable[MessageSegment]:
+        raise NotImplementedError