是否可以使用列上的sum（）对一个laravel集合进行分组？该集合看起来像这样：
[
{id: 1, name: A, quantity: 1, price: 20, options:[{id:10,name:AC}{id:13,name:AB}]},
{id: 1, name: A, quantity: 5, price: 15, options:[{id:20,name:AV},{id:30,name:AZ}]},
{id: 1, name: A, quantity: 10, price: 15, options:[{id:20,name:AV},{id:30,name:AZ}]},
{id: 1, name: A, quantity: 2, price: 10, options:[]},
{id: 1, name: A, quantity: 4, price: 10, options:[]}
]
第2行和第3行是相同的，我需要总和（）数量 .
第4行和第5行是相同的，我需要总和（）数量 .
结果应该是这样的：
[
{id: 1, name: A, quantity: 1, price: 20, options:[{id:10,name:AC}{id:13,name:AB}]},
{id: 1, name: A, quantity: 15, price: 15, options:[{id:20,name:AV},{id:30,name:AZ}]},
{id: 1, name: A, quantity: 6, price: 10, options:[]},
]