public Builder clearWeb() {
      if (webBuilder_ == null) {
        if (chunkTypeCase_ == 1) {
          chunkTypeCase_ = 0;
          chunkType_ = null;
          onChanged();
        }
      } else {
        if (chunkTypeCase_ == 1) {
          chunkTypeCase_ = 0;
          chunkType_ = null;
        }
        webBuilder_.clear();
      }
      return this;
    }
<pre>
Grounding chunk from the web.
</pre>

<code>.google.cloud.vertexai.v1.GroundingChunk.Web web = 1;</code>
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/GroundingChunk.java