@java.lang.Override
  public int getSerializedSize() {
    int size = memoizedSize;
    if (size != -1) return size;

    size = 0;
    if (((bitField0_ & 0x00000001) != 0)) {
      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getBoundingPoly());
    }
    if (java.lang.Float.floatToRawIntBits(confidence_) != 0) {
      size += com.google.protobuf.CodedOutputStream.computeFloatSize(2, confidence_);
    }
    if (java.lang.Float.floatToRawIntBits(importanceFraction_) != 0) {
      size += com.google.protobuf.CodedOutputStream.computeFloatSize(3, importanceFraction_);
    }
    size += getUnknownFields().getSerializedSize();
    memoizedSize = size;
    return size;
  }
<pre>
Fraction of importance of this salient region with respect to the original
image.
</pre>

<code>float importance_fraction = 3;</code>

@return The importanceFraction.
java-vision/proto-google-cloud-vision-v1p1beta1/src/main/java/com/google/cloud/vision/v1p1beta1/CropHint.java