public Builder setHistogramQuery(java.lang.String value) {
      if (value == null) {
        throw new NullPointerException();
      }
      histogramQuery_ = value;
      bitField0_ |= 0x00000001;
      onChanged();
      return this;
    }
<pre>
Requested histogram expression.
</pre>

<code>string histogram_query = 1;</code>

@param value The histogramQuery to set.
@return This builder for chaining.
java-talent/proto-google-cloud-talent-v4beta1/src/main/java/com/google/cloud/talent/v4beta1/HistogramQueryResult.java