code: @Override
      public ModifySnapshotScheduleResult modifySnapshotSchedule(ModifySnapshotScheduleRequest request) {
          request = beforeClientExecution(request);
          return executeModifySnapshotSchedule(request);
      }
docs: <p>
  Modifies a snapshot schedule. Any schedule associated with a cluster is modified asynchronously.
  </p>
  
  @param modifySnapshotScheduleRequest
  @return Result of the ModifySnapshotSchedule operation returned by the service.
  @throws InvalidScheduleException
  The schedule you submitted isn't valid.
  @throws SnapshotScheduleNotFoundException
  We could not find the specified snapshot schedule.
  @throws SnapshotScheduleUpdateInProgressException
  The specified snapshot schedule is already being updated.
  @sample AmazonRedshift.ModifySnapshotSchedule
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/redshift-2012-12-01/ModifySnapshotSchedule"
  target="_top">AWS API Documentation</a>