DataModelMap

An Object that maps the key dataModels to an Object, in which keys are ServiceOperationNames and the values are Objects containing DataModelIDs using keys input and output. If an operation has input payload then the identifier of the input data model is assigned to the key input. If the operation has response payload then the identifier of the response data model is assigned to the key output. If an operation has no input and/or response payload, the appropriate key-value pair must be omitted. If an operation has no payload at all, then that operation can be omitted from the structure.

Should looks like this:

"dataModels": {
  <operation name>: {
    "input": <input data model id>
    "output": <output data model id>
  }
}