handle pytest-asyncio async def coroutines

tests/integration/async_def.py

@@ -0,0 +1,13 @@
+import aiohttp
+import pytest
+import vcr
+
+
+@vcr.use_cassette()
+@pytest.mark.asyncio
+async def test_http():  # noqa: E999
+    async with aiohttp.ClientSession() as session:
+        url = 'https://httpbin.org/get'
+        params = {'ham': 'spam'}
+        resp = await session.get(url, params=params)  # noqa: E999
+        assert (await resp.json())['args'] == {'ham': 'spam'}  # noqa: E999