AssignIn returns wrong type

[HaimWix]

type SomeObject = {
	someField: string
}
function changeSomeField(carmiObject: Graph<SomeObject, F>) {
	carmiObject.assignIn([{someField: {extraProp: true}}])
	carmiObject.get('someField') --TYPE--> Graph<string & {extraProp: boolean}>
}

There are some examples online for a better typing though it's not complete as well

[nirnatan]

Do you have a real use case? It looks like the problem is only when you try to assign two object that has the same property with different type i.e. {a: number} and {a: string}

[HaimWix]

Yes, it happens when you want to merge two objects that has different types for same fields.
The use case I had was for replacing breakpoint field
{breakpoint : string, ...rest}
to
{breakpoint: {range: {min:number, max:number}, mediaQuery} ...rest

I no longer intend to write this code, but I think it's a valid case though not common