public Builder mergeFrom(
            com.google.cloud.visionai.v1.OccupancyCountingPredictionResult.Stats.ActiveZoneCount
                other) {
          if (other
              == com.google.cloud.visionai.v1.OccupancyCountingPredictionResult.Stats
                  .ActiveZoneCount.getDefaultInstance()) return this;
          if (other.hasAnnotation()) {
            mergeAnnotation(other.getAnnotation());
          }
          if (countsBuilder_ == null) {
            if (!other.counts_.isEmpty()) {
              if (counts_.isEmpty()) {
                counts_ = other.counts_;
                bitField0_ = (bitField0_ & ~0x00000002);
              } else {
                ensureCountsIsMutable();
                counts_.addAll(other.counts_);
              }
              onChanged();
            }
          } else {
            if (!other.counts_.isEmpty()) {
              if (countsBuilder_.isEmpty()) {
                countsBuilder_.dispose();
                countsBuilder_ = null;
                counts_ = other.counts_;
                bitField0_ = (bitField0_ & ~0x00000002);
                countsBuilder_ =
                    com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
                        ? getCountsFieldBuilder()
                        : null;
              } else {
                countsBuilder_.addAllMessages(other.counts_);
              }
            }
          }
          this.mergeUnknownFields(other.getUnknownFields());
          onChanged();
          return this;
        }
<pre>
Message for the active zone count.
</pre>

Protobuf type {@code
google.cloud.visionai.v1.OccupancyCountingPredictionResult.Stats.ActiveZoneCount}
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/OccupancyCountingPredictionResult.java