public static com.google.cloud.vertexai.api.Neighbor parseFrom(
      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
  }
<pre>
Output only. The neighbor distance.
</pre>

<code>double neighbor_distance = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>

@return The neighborDistance.
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/Neighbor.java