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import { isDate, isValidDate, Key, Values } from "../../libs/types.ts";import { RULE, ValueSchemaError } from "../../libs/ValueSchemaError.ts";export interface Rules {}/** * apply schema * @param values input/output values * @param _rules rules * @param keyStack key stack for error handling * @returns escapes from applyTo chain or not */export function applyTo(values: Values, _rules: Rules, keyStack: Key[]): values is Values<Date> {    if (!isDate(values.output)) {        // could not convert to Date        return ValueSchemaError.raise(RULE.TYPE, values, keyStack);    }    if (!isValidDate(values.output)) {        // could convert to Date, but invalid.        // mostly, the format is wrong.        return ValueSchemaError.raise(RULE.PATTERN, values, keyStack);    }    // copy value    values.output = new Date(values.output);    return false;}