Extended json de/serialization

[Sibl-SimonBlack]

Is your feature request related to a problem? Please describe.
I have a use case where I receive a Terminal API request string and I need to parse this into a SaleToPOIMessage. and I have 4 semi-issue:
1: I need to manually parse the json and map the value to the models of the SDK.
2: The MessagePayload property makes it more difficult to parse, since it has a different name than fx PaymentRequest.
3: I need to manually convert key/value pairs to Object structure defined in the SDK e.g. SaleToAcquirerData.TenderOption.
4: When serialising response I would expect the root of the json to contain the SaleToPOIResponse property, but right now the serialisation returns the children objects of SaleToPOIResponse in the root.

Describe the solution you'd like
I would like the flow to be something like this:
string incommingJson =
{ "SaleToPOIRequest": {
"MessageHeader": {...},
"PaymentRequest": {...}
}
}
var parser = new Adyen.ApiSerialization.SaleToPoiMessageSerializer();
SaleToPOIMessage msg = parser.Deserialize(incommingJson);

//...... Do Payment flow here via SDK....//
SaleToPOIResponse response; //response from Terminal
var outgoingJsonResponse = parser.Serialize(SaleToPOIResponse);

Where the outgoingJsonResponse would have the json structure like this:
{
"SaleToPOIResponse":
{
"MessageHeader": {...},
"PaymentResponse": {...}
}
}

Describe alternatives you've considered
Make some of the parsing utilities in the Adyen nuget library accessible with the "public" access modifier.

Additional context