public Builder setBatchId(java.lang.String value) {
      if (value == null) {
        throw new NullPointerException();
      }
      batchId_ = value;
      bitField0_ |= 0x00000100;
      onChanged();
      return this;
    }
<pre>
Optional. Optional: Batch ID of the Process.
</pre>

<code>string batch_id = 9 [(.google.api.field_behavior) = OPTIONAL];</code>

@param value The batchId to set.
@return This builder for chaining.
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/Process.java