How to map an object property with multiple fields

[klmatom]

What would be the appropriate way to map an object with multiple properties? Thank you for your assistance.

$index->mappings(
            Sherlock::mappingBuilder($this->indexType)->String()->field('title')->analyzer('snowball'),
            Sherlock::mappingBuilder($this->indexType)->String()->field('description')->analyzer('snowball'),
            Sherlock::mappingBuilder($this->indexType)->String()->field('status'),
            Sherlock::mappingBuilder($this->indexType)->Number()->field('categoryId')->type('short'),
            Sherlock::mappingBuilder($this->indexType)->Object()->field('data')->object(
                    Sherlock::mappingBuilder($this->indexType)->String()->field('field1'),
                    Sherlock::mappingBuilder($this->indexType)->String()->field('field2'),
                    Sherlock::mappingBuilder($this->indexType)->String()->field('field3'),
                    Sherlock::mappingBuilder($this->indexType)->String()->field('field4')
            )
        );

Array
(
    [settings] => Array
        (
        )

    [mappings] => Array
        (
            [post] => Array
                (
                    [properties] => Array
                        (
                            [title] => Array
                                (
                                    [type] => string
                                    [analyzer] => snowball
                                )

                            [description] => Array
                                (
                                    [type] => string
                                    [analyzer] => snowball
                                )

                            [status] => Array
                                (
                                    [type] => string
                                )

                            [categoryId] => Array
                                (
                                    [type] => short
                                )

                            [data] => Array
                                (
                                    [properties] => Array
                                        (
                                            [field1] => Array
                                                (
                                                    [type] => string
                                                )

                                        )

                                    [type] => object
                                )

                        )

                )

        )

)