Post requestBody not showing/generating

[diegofloresgonzales]

I'm trying to add request body here for my post endpoint, I cannot, I have tried requestBody property and nothing.
As seen in the picture I've been able to add it manually in the json output but not from the yml config file

endpoints:
    createPerson:
      summary: Crear personaje
      description: Crea un personaje nuevo en la BD.
      requestBody:
        description: "Body param"
      requestModels:
        application/json: RequestObject

Basically this object is not being generated I have to add it manually for it to work