src/main/java/org/apache/datasketches/pig/quantiles/DataToDoublesSketch.java [210:220]:
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  public Tuple getValue() {
    if (this.accumUnion_ != null) {
      final DoublesSketch resultSketch = this.accumUnion_.getResultAndReset();
      if (resultSketch != null) {
        return tupleFactory_.newTuple(new DataByteArray(resultSketch.toByteArray(true)));
      }
    }
    // return empty sketch
    return tupleFactory_.newTuple(
      new DataByteArray(this.unionBuilder_.build().getResult().toByteArray(true)));
  }
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src/main/java/org/apache/datasketches/pig/quantiles/UnionDoublesSketch.java [189:199]:
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  public Tuple getValue() {
    if (this.accumUnion_ != null) {
      final DoublesSketch resultSketch = this.accumUnion_.getResultAndReset();
      if (resultSketch != null) {
        return tupleFactory_.newTuple(new DataByteArray(resultSketch.toByteArray(true)));
      }
    }
    // return empty sketch
    return tupleFactory_.newTuple(
        new DataByteArray(this.unionBuilder_.build().getResult().toByteArray(true)));
  }
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