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Description
Is your feature request related to a problem? Please describe.
I'm designing a stable external API that needs to wrap our existing fast-moving internal API. Sometimes, I want to call existing resolvers to do that.
However, when using deeply nested inputs with a @property, it's not possible to wrap that input with another (simplified) input, because I can't create an "instance" with the correct parameters on creation.
Describe the solution you'd like
I would like an escape hatch to instantiate inputs.
Describe alternatives you've considered
An inheritance-based mechanism where I could remove fields and structures from a parent might solve the problem, but I don't think it would be as clean.