@java.lang.Override
    public Builder clear() {
      super.clear();
      bitField0_ = 0;
      if (assetGcsSourceBuilder_ != null) {
        assetGcsSourceBuilder_.clear();
      }
      if (assetContentDataBuilder_ != null) {
        assetContentDataBuilder_.clear();
      }
      sourceFormCase_ = 0;
      sourceForm_ = null;
      return this;
    }
<pre>
The source of the asset.
</pre>

Protobuf type {@code google.cloud.visionai.v1.AssetSource}
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/AssetSource.java