get https://sandbox.sellingpartnerapi-na.amazon.com/shipping/v2/shipments/additionalInputs/schema
Returns the JSON schema to use for providing additional inputs when needed to purchase a shipping offering. Call the getAdditionalInputs operation when the response to a previous call to the getRates operation indicates that additional inputs are required for the rate (shipping offering) that you want to purchase.