Function validate_string

pymongo/common.py:249–253

Validates that 'value' is an instance of `str`.

(option: str, value: Any)

def validate_string(option: str, value: Any) -> str:
    """Validates that 'value' is an instance of `str`."""
    if isinstance(value, str):
        return value
    raise TypeError(f"Wrong type for {option}, value must be an instance of str, not {type(value)}")


def validate_string_or_none(option: str, value: Any) -> Optional[str]: