public Builder clearAsset() {
      asset_ = getDefaultInstance().getAsset();
      bitField0_ = (bitField0_ & ~0x00000001);
      onChanged();
      return this;
    }
<pre>
The resource name of the asset.
Format:
`projects/{project_number}/locations/{location_id}/corpora/{corpus_id}/assets/{asset_id}`
</pre>

<code>string asset = 1;</code>

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