解析打字稿中嵌套数组的值

Question

我能够使用以下方式动态访问任何给定服务的值：嵌套数组{service1: {key:value,key:value}, service2: {key:value,key:value}}中的键

private get(service:any, key: any){
    return this.getProperty(this.getProperty(this.secrets,service),key)
}
private getProperty<T, K extends keyof T>(o: T, propertyName: K): T[K] {
    return o[propertyName];

但是我很难在数组中引入另一个顶层

{foo: {service1: {key:value,key:value}, service2: {key:value,key:value}}, bar: {service1: {key:value,key:value}, service2: {key:value,key:value}} }

任何快速输入吗？