from dataclasses import dataclass, field from typing import Dict, Any, Callable, Optional, Type, List @dataclass class Config: type_hooks: Dict[Type, Callable[[Any], Any]] = field(default_factory=dict) cast: List[Type] = field(default_factory=list) forward_references: Optional[Dict[str, Any]] = None check_types: bool = True strict: bool = False strict_unions_match: bool = False