code: @Override
      public Map<Long, Double> mapping(Map<Long, Double> originalDatapoints) {
          Map<Long, Double> absDatapoints = new HashMap<>();
  
          for (Entry<Long, Double> entry : originalDatapoints.entrySet()) {
              Double absValue = Math.abs(entry.getValue());
  
              absDatapoints.put(entry.getKey(), absValue);
          }
          return absDatapoints;
      }
docs: ~ Methods **************************************************************************************************************************************