Merge pull request #101 from sanders41/mypy

Bumps mypy from 0.812 to 0.901.

Author: sanders41

.pre-commit-config.yaml

@@ -18,9 +18,10 @@ repos:
       language_version: python3
       args: [--line-length=100]
   - repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v0.812
+    rev: v0.901
     hooks:
     - id: mypy
+      additional_dependencies: [types-aiofiles]
       files: async_search_client/
   - repo: https://github.com/PyCQA/flake8
     rev: 3.9.2