code: public ListAttacksResult withAttackSummaries(AttackSummary... attackSummaries) {
          if (this.attackSummaries == null) {
              setAttackSummaries(new java.util.ArrayList<AttackSummary>(attackSummaries.length));
          }
          for (AttackSummary ele : attackSummaries) {
              this.attackSummaries.add(ele);
          }
          return this;
      }
docs: <p>
  The attack information for the specified time range.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setAttackSummaries(java.util.Collection)} or {@link #withAttackSummaries(java.util.Collection)} if you
  want to override the existing values.
  </p>
  
  @param attackSummaries
  The attack information for the specified time range.
  @return Returns a reference to this object so that method calls can be chained together.