Type Alias ValidationErrorMessageProvider<TSchema>

ValidationErrorMessageProvider:
    | string
    | (
        (
            seenValue: InferType<TSchema>,
            schema: TSchema,
        ) => string | Promise<string>
    )

Type of the function that provides a validation error message for the given seenValue and schema. Can be a string or a function returning a string or a promise of a string. Should be used to provide a custom validation error message.