from pydantic import BaseModel, ConfigDict class ClampConnectionBase(BaseModel): min_mm: float | None = None max_mm: float | None = None min_in: float | None = None max_in: float | None = None class ClampConnectionCreate(ClampConnectionBase): pass class ClampConnectionUpdate(ClampConnectionBase): pass class ClampConnectionRead(ClampConnectionBase): model_config = ConfigDict(from_attributes=True) id: int