public Builder clearHeadCoverageScore() {
        bitField0_ = (bitField0_ & ~0x00000020);
        headCoverageScore_ = 0F;
        onChanged();
        return this;
      }
<pre>
Coverage score for head.
</pre>

<code>optional float head_coverage_score = 6;</code>

@return This builder for chaining.
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/PersonalProtectiveEquipmentDetectionOutput.java