$prods = [
            'product' => [
                'RelatedProduct' => [
                    'id', 'title',
                    ['Specifications' => [
                        [
                            'id','title','position',
                                ['values' =>
                                    [
                                    'id','value','position',
                                    ]
                                ]
                        ],
                        [
                            'id','title','position',
                                ['values' =>
                                    [
                                    'id','value','position',
                                    ]
                                ]
                        ],
                        [
                            'id','title','position',
                                ['values' =>
                                    [
                                    'id','value','position',
                                    ]
                                ]
                        ],
                        ]]
                ]
            ],
            'product 2' => [
                'RelatedProduct' => [
                    'id', 'title',
                    ['Specifications' => [
                        [
                            'id','title','position',
                                ['values' =>
                                    [
                                    'id','value','position',
                                    ]
                                ]
                        ],
                        [
                            'id','title','position',
                                ['values' =>
                                    [
                                    'id','value','position',
                                    ]
                                ]
                        ],
                        [
                            'id','title','position',
                                ['values' =>
                                    [
                                    'id','value','position',
                                    ]
                                ]
                        ],
                        ]]
                ]
            ],
            'product 3' => [
                'RelatedProduct' => [
                    'id', 'title',
                    ['Specifications' => [
                        [
                            'id','title','position',
                                ['values' =>
                                    [
                                    'id','value','position',
                                    ]
                                ]
                        ],
                        [
                            'id','title','position',
                                ['values' =>
                                    [
                                    'id','value','position',
                                    ]
                                ]
                        ],
                        [
                            'id','title','position',
                                ['values' =>
                                    [
                                    'id','value','position',
                                    ]
                                ]
                        ],
                        ]]
                ]
            ],
        ];