code: public DescribeCommandsRequest withCommandIds(String... commandIds) {
          if (this.commandIds == null) {
              setCommandIds(new com.amazonaws.internal.SdkInternalList<String>(commandIds.length));
          }
          for (String ele : commandIds) {
              this.commandIds.add(ele);
          }
          return this;
      }
docs: <p>
  An array of command IDs. If you include this parameter, <code>DescribeCommands</code> returns a description of
  the specified commands. Otherwise, it returns a description of every command.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setCommandIds(java.util.Collection)} or {@link #withCommandIds(java.util.Collection)} if you want to
  override the existing values.
  </p>
  
  @param commandIds
  An array of command IDs. If you include this parameter, <code>DescribeCommands</code> returns a
  description of the specified commands. Otherwise, it returns a description of every command.
  @return Returns a reference to this object so that method calls can be chained together.