code: public DBEngineVersion withExportableLogTypes(String... exportableLogTypes) {
          if (this.exportableLogTypes == null) {
              setExportableLogTypes(new java.util.ArrayList<String>(exportableLogTypes.length));
          }
          for (String ele : exportableLogTypes) {
              this.exportableLogTypes.add(ele);
          }
          return this;
      }
docs: <p>
  The types of logs that the database engine has available for export to CloudWatch Logs.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setExportableLogTypes(java.util.Collection)} or {@link #withExportableLogTypes(java.util.Collection)} if
  you want to override the existing values.
  </p>
  
  @param exportableLogTypes
  The types of logs that the database engine has available for export to CloudWatch Logs.
  @return Returns a reference to this object so that method calls can be chained together.