code: @Override
      public DBSnapshot deleteDBSnapshot(DeleteDBSnapshotRequest request) {
          request = beforeClientExecution(request);
          return executeDeleteDBSnapshot(request);
      }
docs: <p>
  Deletes a DB snapshot. If the snapshot is being copied, the copy operation is terminated.
  </p>
  <note>
  <p>
  The DB snapshot must be in the <code>available</code> state to be deleted.
  </p>
  </note>
  
  @param deleteDBSnapshotRequest
  @return Result of the DeleteDBSnapshot operation returned by the service.
  @throws InvalidDBSnapshotStateException
  The state of the DB snapshot doesn't allow deletion.
  @throws DBSnapshotNotFoundException
  <i>DBSnapshotIdentifier</i> doesn't refer to an existing DB snapshot.
  @sample AmazonRDS.DeleteDBSnapshot
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/rds-2014-10-31/DeleteDBSnapshot" target="_top">AWS API
  Documentation</a>