code: public java.util.List<Field> getFields() {
          if (fields == null) {
              fields = new com.amazonaws.internal.SdkInternalList<Field>();
          }
          return fields;
      }
docs: <p>
  Key-value pairs that define the properties of the ReportTaskProgressInput object.
  </p>
  
  @return Key-value pairs that define the properties of the ReportTaskProgressInput object.