Use anyio to support both trio and asyncio

README.md

@@ -363,25 +363,41 @@ In order to use the async version, you need to install the package using:
 ```
 pip install discord-webhook[async]
 ```
+python-discord-webhook supports both asyncio and [trio](https://trio.readthedocs.io/en/stable/) through the use of [anyio](https://anyio.readthedocs.io/en/3.x/)
+
 Example usage:
 ```python
 import asyncio
-from discord_webhook import AsyncDiscordWebhook
+import os
+
+import trio
 
+import discord_webhook
 
-async def send_webhook(message):
-    webhook = AsyncDiscordWebhook(url="your webhook url", content=message)
+
+async def send_webhook(message: str):
+    webhook = discord_webhook.AsyncDiscordWebhook(url="your webhook url", content=message)
     await webhook.execute()
 
 
-async def main():
+async def trio_main():
+    async with trio.open_nursery() as nursery:
+        nursery.start_soon(send_webhook, "Async webhook message 1")
+        nursery.start_soon(send_webhook, "Async webhook message 2")
+
+
+async def asyncio_main():
     await asyncio.gather(
         send_webhook("Async webhook message 1"),
         send_webhook("Async webhook message 2"),
     )  # sends both messages asynchronously
 
 
-asyncio.run(main())
+if __name__ == "__main__":
+    trio.run(trio_main)
+    asyncio.run(asyncio_main())
+
+
 ```
 
 ### Use CLI

discord_webhook/async_webhook.py

@@ -1,4 +1,4 @@
-import asyncio
+import anyio
 import json
 import logging
 from contextlib import asynccontextmanager
@@ -90,7 +90,7 @@ async def handle_rate_limit(self, response, request) -> "httpx.Response":
                     wh_sleep=round(wh_sleep, 2)
                 )
             )
-            await asyncio.sleep(wh_sleep)
+            await anyio.sleep(wh_sleep)
             response = await request()
             if response.status_code in [200, 204]:
                 return response

pyproject.toml

@@ -14,6 +14,7 @@ keywords = ["discord", "webhook"]
 python = "^3.8"
 requests = "^2.28.1"
 httpx = { version = "^0.23.0", optional = true }
+anyio = "^3.7.1"
 
 [tool.poetry.extras]
 async = ["httpx"]