@java.lang.Override
  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
    if (java.lang.Float.floatToRawIntBits(left_) != 0) {
      output.writeFloat(1, left_);
    }
    if (java.lang.Float.floatToRawIntBits(top_) != 0) {
      output.writeFloat(2, top_);
    }
    if (java.lang.Float.floatToRawIntBits(right_) != 0) {
      output.writeFloat(3, right_);
    }
    if (java.lang.Float.floatToRawIntBits(bottom_) != 0) {
      output.writeFloat(4, bottom_);
    }
    getUnknownFields().writeTo(output);
  }
<pre>
Bottom Y coordinate.
</pre>

<code>float bottom = 4;</code>

@return The bottom.
java-video-intelligence/proto-google-cloud-video-intelligence-v1p2beta1/src/main/java/com/google/cloud/videointelligence/v1p2beta1/NormalizedBoundingBox.java