Is it possible to dynamically create InputObjectType objects ?

My problem: I have a method foo that takes an InputObjectType as input and does some logic, from those InputObjectType, I need to create, dynamically in the backend, other InputObjectType that will also be passed to the foo method.

When I try to create the InputObjectType, I get a type String is not json serializable error.
Is what am saying possible ? or should refactor my foo method to take dicts or something else ?

```python
def foo(input: SomeInputObjectType):
some_logic(input.some_attribute)

def mutate(..., input1):
# I want to create object input2 that can be passed to the foo method along with input1
# input2 = InputObjectType(...)
foo(input1)
foo(input2)
```

Start with Graphene's InputObjectType behavior and the foo and mutate entry points shown in the issue. Reproduce the String is not JSON serializable error with the proposed dynamically created input, then determine whether construction is supported or whether the foo boundary needs to accept another representation. Done means the supported approach or required refactor is documented and verified.

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