code: public InstanceGroup withEbsBlockDevices(EbsBlockDevice... ebsBlockDevices) {
          if (this.ebsBlockDevices == null) {
              setEbsBlockDevices(new com.amazonaws.internal.SdkInternalList<EbsBlockDevice>(ebsBlockDevices.length));
          }
          for (EbsBlockDevice ele : ebsBlockDevices) {
              this.ebsBlockDevices.add(ele);
          }
          return this;
      }
docs: <p>
  The EBS block devices that are mapped to this instance group.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setEbsBlockDevices(java.util.Collection)} or {@link #withEbsBlockDevices(java.util.Collection)} if you
  want to override the existing values.
  </p>
  
  @param ebsBlockDevices
  The EBS block devices that are mapped to this instance group.
  @return Returns a reference to this object so that method calls can be chained together.