code: public DescribeEntityAggregatesResult withEntityAggregates(EntityAggregate... entityAggregates) {
          if (this.entityAggregates == null) {
              setEntityAggregates(new java.util.ArrayList<EntityAggregate>(entityAggregates.length));
          }
          for (EntityAggregate ele : entityAggregates) {
              this.entityAggregates.add(ele);
          }
          return this;
      }
docs: <p>
  The number of entities that are affected by each of the specified events.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setEntityAggregates(java.util.Collection)} or {@link #withEntityAggregates(java.util.Collection)} if you
  want to override the existing values.
  </p>
  
  @param entityAggregates
  The number of entities that are affected by each of the specified events.
  @return Returns a reference to this object so that method calls can be chained together.