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