The IFS API documentation has many fields in it Request Body Schemas wrongly labeled as 'required' in the input type definitions. There are examples where over 20 items are wrong within one schema. Since this is not going to change any time soon, it would be better to have the code generator define all fields as optional. Since typically a type is not defined from scratch but copy/pasted from the browser debugger console, it avoids a lot of unnecessary type issues in FlowScript for which the generated code needs to be adapted.