Put under version control

.pre-commit-config.yaml

@@ -0,0 +1,30 @@
+# See https://pre-commit.com for more information
+# See https://pre-commit.com/hooks.html for more hooks
+repos:
+-   repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.0.1
+    hooks:
+    -   id: trailing-whitespace
+    -   id: end-of-file-fixer
+    -   id: check-yaml
+    -   id: check-added-large-files
+-   repo: https://github.com/psf/black
+    rev: 21.11b1
+    hooks:
+    -   id: black
+-   repo: https://github.com/timothycrosley/isort
+    rev: 5.10.1
+    hooks:
+    -   id: isort
+        args: ["--profile", "black", "--filter-files", "-l", "79"]
+-   repo: https://github.com/myint/autoflake
+    rev: v1.4
+    hooks:
+      - id: autoflake
+        args:
+          [
+            "--in-place",
+            "--remove-all-unused-imports",
+            "--ignore-init-module-imports",
+            "--remove-unused-variables",
+          ]