public static com.google.cloud.videointelligence.v1.Track parseFrom(java.io.InputStream input)
      throws java.io.IOException {
    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
  }
<pre>
Optional. The confidence score of the tracked object.
</pre>

<code>float confidence = 4 [(.google.api.field_behavior) = OPTIONAL];</code>

@return The confidence.
java-video-intelligence/proto-google-cloud-video-intelligence-v1/src/main/java/com/google/cloud/videointelligence/v1/Track.java