toRefs does not return the correct typescript type

[lixpng]

If a Object type has a value attribute, after I use toRefs(xxx), the typescripte type will incorrect.
eg:

interface IObjectWithValueAttr {
    name: string
    value: string
}

interface IA {
    b: IObjectWithValueAttr
}

const a: IA = {
    b: {
        name: 'Jon',
        value: 'test'
    }
}

const refsA = toRefs(a)

// there will is a error, because refsA.b will be infer to type `Ref<string>`
refsA.b.name = 'Tony'

Is it because the Ref interface only define the value key ?

[jacekkarczmarczyk]

#199

[posva]

Let's close this as a duplicate of #157