code: @Override
      public OptionGroup copyOptionGroup(CopyOptionGroupRequest request) {
          request = beforeClientExecution(request);
          return executeCopyOptionGroup(request);
      }
docs: <p>
  Copies the specified option group.
  </p>
  
  @param copyOptionGroupRequest
  @return Result of the CopyOptionGroup operation returned by the service.
  @throws OptionGroupAlreadyExistsException
  The option group you are trying to create already exists.
  @throws OptionGroupNotFoundException
  The specified option group could not be found.
  @throws OptionGroupQuotaExceededException
  The quota of 20 option groups was exceeded for this AWS account.
  @sample AmazonRDS.CopyOptionGroup
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/rds-2014-10-31/CopyOptionGroup" target="_top">AWS API
  Documentation</a>