Updated files with 'repo_helper'. (#13)

Co-authored-by: repo-helper[bot] <74742576+repo-helper[bot]@users.noreply.github.com>

Author: repo-helper[bot]

.pre-commit-config.yaml

@@ -59,6 +59,7 @@ repos:
     - id: pyupgrade
       args:
        - --py36-plus
+       - --keep-runtime-typing
 
  - repo: https://github.com/Lucas-C/pre-commit-hooks
    rev: v1.1.9