add Validate decorators.

Author: flask-pro

pyproject.toml

@@ -30,7 +30,6 @@ version = "4.0.0"
 [project.optional-dependencies]
 dev = [
   "build==1.3.0",
-  "mypy",
   "pre-commit==4.3.0",
   "pytest==8.4.2",
   "pytest-cov==7.0.0",