[typescript-resolvers]Mappers don't inject the generated type for Interface types

[calirvine]

Hi! I'm running in to a problem with typescript-resolvers where I have defined a generic to be used as a mapper for some fields, but when it's used with interfaces the behaviour is not what I would expect.

Consider this case, I have an interface Card with three implementing types. When the code generator runs with default behaviour, I get the following generated type:

export type ResolversParentTypes = ResolversObject<{
    Card: ResolversParentTypes['CTACard'] | ResolversParentTypes['LinkListCard'] | ResolversParentTypes['ProductCard'];
}>

However if I add this to the mapper: Card: LinkableEntry<{T}> the generated code becomes

export type ResolversParentTypes = ResolversObject<{
    Card: LinkableEntry<Card>;
}>

When what I would expect is the union of implementing types to be passed in, the same as the default behaviour.

export type ResolversParentTypes = ResolversObject<{
    Card: LinkableEntry<ResolversParentTypes['CTACard'] | ResolversParentTypes['LinkListCard'] | ResolversParentTypes['ProductCard']>;
}>

Is there a way to get the behaviour I expect, instead of what occurs now?