code: @Override
    public void dropRowRange(String tableId, String rowKeyPrefix) {
      Preconditions.checkNotNull(rowKeyPrefix);
      DropRowRangeRequest protoRequest =
          DropRowRangeRequest.newBuilder()
              .setName(instanceName.toTableNameStr(tableId))
              .setDeleteAllDataFromTable(false)
              .setRowKeyPrefix(ByteString.copyFromUtf8(rowKeyPrefix))
              .build();
      delegate.dropRowRange(protoRequest);
    }
docs: {@inheritDoc}