code: public void deleteRowRangeByPrefix(TableName tableName, byte[] prefix) throws IOException {
      try {
        tableAdminClientWrapper.dropRowRange(tableName.getNameAsString(), Bytes.toString(prefix));
      } catch (Throwable throwable) {
        throw new IOException(
            String.format("Failed to truncate table '%s'", tableName.getNameAsString()), throwable);
      }
    }
docs: <p>deleteRowRangeByPrefix.</p>
  
  @param tableName a {@link org.apache.hadoop.hbase.TableName} object.
  @param prefix an array of byte.
  @throws java.io.IOException if any.