create work definition for a work order using rest api

Dear All,

I am trying to create a work definition for a work order using the REST API, but when I use this JSON request body:

{
"AssetNumber":"test",
"WorkOrderTypeCode":"CORRECTIVE",
"OrganizationCode":"testoc",
"WorkOrderSubTypeCode":"ORA_EMERGENCY",
"WorkOrderPriority":1,
"Status":"PENDING",
"WorkOrderOperation":[
{
"OperationName":"test",

"WorkCenterCode":"test",
"CountPointOperationFlag":"Y",
"OperationType":"IN_HOUSE",
"OperationSequenceNumber":10
}
]
}

This request is creating an operation:

But I need to create the work definition at the level of the work definition in the general information tab.

Is there a method to achieve that using rest api?

Thank you in advance,