ValidationResult

The outcome of a single validation check.

Attributes:

Name	Type	Description
`is_valid`	`bool`	True if validation passed, False otherwise.
`message`	`str`	Error message when `is_valid` is False; empty string otherwise.

__init__(is_valid: bool, message: str = '')

Create a validation result.

Parameters:

Name	Type	Description	Default
`is_valid`	`bool`	True if validation passed.	required
`message`	`str`	Error message. Defaults to an empty string.	`''`