code: private void acceptAttributes(Collection<AttributeUpdate> attributeUpdates) {
          if (attributeUpdates == null) {
              return;
          }
  
          for (AttributeUpdate au : attributeUpdates) {
              this.attributeUpdates.put(au.getAttributeId(), au.getValue());
          }
      }
docs: Accepts a collection of AttributeUpdates in the metadata.
  
  @param attributeUpdates The Attribute updates to accept.