add mypy configuration

Author: abn

pyproject.toml

@@ -40,6 +40,14 @@ lines_after_imports = 2
 lines_between_types = 1
 use_parentheses = true
 
+[tool.mypy]
+check_untyped_defs = true
+ignore_missing_imports = true
+show_error_codes = true
+warn_redundant_casts = true
+warn_unused_configs = true
+warn_unused_ignores = true
+files = "src"
 
 [build-system]
 requires = ["poetry-core"]