public Builder validatorFactory(
                ValidatorFactory validatorFactory,
                ValidationEventDecorator validationEventDecorator
        ) {
            this.validatorFactory = Objects.requireNonNull(validatorFactory);
            this.validationEventDecorator = validationEventDecorator;
            return this;
        }
Sets the factory used to find built-in {@link Validator}s and to load validators found in model metadata.

@param validatorFactory Factory to use to load {@code Validator}s.
@param validationEventDecorator Provide a previously loaded and composed decorator.
@return Returns the builder.
smithy-model/src/main/java/software/amazon/smithy/model/loader/ModelValidator.java