code: @Override
      public Map<String, Object> getBodyParameters() {
  
          if(this.cascadeCreate) {
              Map<String, Object> values = new HashMap<String, Object>(this.values);
              values.put("!cascadeCreate", true);
              return values;
          }
  
          return this.values;
      }
docs: Get body parameters
  @return Values of body parameters (name of parameter: value of the parameter)