code: public ListMigrationTasksResult withMigrationTaskSummaryList(MigrationTaskSummary... migrationTaskSummaryList) {
          if (this.migrationTaskSummaryList == null) {
              setMigrationTaskSummaryList(new java.util.ArrayList<MigrationTaskSummary>(migrationTaskSummaryList.length));
          }
          for (MigrationTaskSummary ele : migrationTaskSummaryList) {
              this.migrationTaskSummaryList.add(ele);
          }
          return this;
      }
docs: <p>
  Lists the migration task's summary which includes: <code>MigrationTaskName</code>, <code>ProgressPercent</code>,
  <code>ProgressUpdateStream</code>, <code>Status</code>, and the <code>UpdateDateTime</code> for each task.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setMigrationTaskSummaryList(java.util.Collection)} or
  {@link #withMigrationTaskSummaryList(java.util.Collection)} if you want to override the existing values.
  </p>
  
  @param migrationTaskSummaryList
  Lists the migration task's summary which includes: <code>MigrationTaskName</code>,
  <code>ProgressPercent</code>, <code>ProgressUpdateStream</code>, <code>Status</code>, and the
  <code>UpdateDateTime</code> for each task.
  @return Returns a reference to this object so that method calls can be chained together.