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mypy.ini

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+[mypy]
+; Ensure full coverage
+disallow_untyped_calls = True
+disallow_untyped_defs = True
+disallow_incomplete_defs = True
+disallow_untyped_decorators = True
+check_untyped_defs = True
+
+; Restrict dynamic typing
+disallow_any_generics = True
+disallow_subclassing_any = True
+warn_return_any = True
+
+; Know exactly what you're doing
+warn_redundant_casts = True
+warn_unused_ignores = True
+warn_unused_configs = True
+warn_unreachable = True
+show_error_codes = True
+
+; Explicit is better than implicit
+no_implicit_optional = True
+
+; Some libraries don't have hints yet
+ignore_missing_imports = True
+follow_imports = silent
+