Function Default

fastapi/datastructures.py:174–181

You shouldn't use this function directly. It's used internally to recognize when a default value has been overwritten, even if the overridden default value was truthy.

(value: DefaultType)

def Default(value: DefaultType) -> DefaultType:
    """
    You shouldn't use this function directly.

    It's used internally to recognize when a default value has been overwritten, even
    if the overridden default value was truthy.
    """
    return DefaultPlaceholder(value)  # type: ignore


# Sentinel for "parameter not provided" in Param/FieldInfo.