code: public DBEngineVersion withSupportedEngineModes(String... supportedEngineModes) {
          if (this.supportedEngineModes == null) {
              setSupportedEngineModes(new com.amazonaws.internal.SdkInternalList<String>(supportedEngineModes.length));
          }
          for (String ele : supportedEngineModes) {
              this.supportedEngineModes.add(ele);
          }
          return this;
      }
docs: <p>
  A list of the supported DB engine modes.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setSupportedEngineModes(java.util.Collection)} or {@link #withSupportedEngineModes(java.util.Collection)}
  if you want to override the existing values.
  </p>
  
  @param supportedEngineModes
  A list of the supported DB engine modes.
  @return Returns a reference to this object so that method calls can be chained together.