GraphQL\Type\SchemaValidator::getAllRules PHP Method

    public static function getAllRules()
    {
        if (null === self::$rules) {
            self::$rules = [self::noInputTypesAsOutputFieldsRule(), self::noOutputTypesAsInputArgsRule(), self::typesInterfacesMustShowThemAsPossibleRule(), self::interfacePossibleTypesMustImplementTheInterfaceRule(), self::interfacesAreCorrectlyImplemented()];
        }
        return self::$rules;
    }