Fully type annotate pybreaker.py (#73)

.pre-commit-config.yaml

@@ -7,3 +7,10 @@ repos:
     rev: 5.10.1
     hooks:
       - id: isort
+  - repo: https://github.com/pre-commit/mirrors-mypy
+    rev: v0.971
+    hooks:
+      - id: mypy
+        pass_filenames: false
+        additional_dependencies:
+          - "types-redis"

pyproject.toml

@@ -0,0 +1,9 @@
+[tool.mypy]
+disallow_untyped_defs = true
+ignore_missing_imports = true
+no_implicit_optional = true
+show_error_codes = true
+files = ["src/pybreaker.py"]
+
+[tool.isort]
+profile = "black"

setup.py

@@ -22,13 +22,9 @@
     package_dir={"": "src"},
     py_modules=["pybreaker"],
     include_package_data=True,
+    install_requires=["typing_extensions>=3.10.0; python_version < '3.8'"],
     zip_safe=False,
     python_requires=">=3.7",
-    test_suite='tests',
-    tests_require=[
-        'mock',
-        'fakeredis==0.16.0',
-        'redis==2.10.6',
-        'tornado'
-    ],
+    test_suite="tests",
+    tests_require=["mock", "fakeredis==0.16.0", "redis==2.10.6", "tornado"],
 )