Motor AttributeError

[moas]

ERROR:aiohttp.server:Error handling request
Traceback (most recent call last):
File "/home/oscar/.pyenv/versions/ads/lib/python3.6/site-packages/aiohttp/web_protocol.py", line 390, in start
resp = await self._request_handler(request)
File "/home/oscar/.pyenv/versions/ads/lib/python3.6/site-packages/aiohttp/web_app.py", line 352, in _handle
resp = await handler(request)
File "/home/oscar/.pyenv/versions/ads/lib/python3.6/site-packages/aiohttp/web_middlewares.py", line 106, in impl
return await handler(request)
File "/home/oscar/.pyenv/versions/ads/lib/python3.6/site-packages/aiohttp_session/init.py", line 149, in factory
response = await handler(request)
File "/home/oscar/.pyenv/versions/ads/lib/python3.6/site-packages/aiohttp/web_middlewares.py", line 106, in impl
return await handler(request)
File "/home/oscar/.pyenv/versions/ads/lib/python3.6/site-packages/aiohttp_admin/backends/mongo.py", line 47, in list
count = await self._collection.find(query).count()
AttributeError: 'AsyncIOMotorCursor' object has no attribute 'count'

[jettify]

Looks like motor changed API or something like that, we should probably pin motor version or something.