public Builder addWebSearchQueries(java.lang.String value) {
      if (value == null) {
        throw new NullPointerException();
      }
      ensureWebSearchQueriesIsMutable();
      webSearchQueries_.add(value);
      bitField0_ |= 0x00000001;
      onChanged();
      return this;
    }
<pre>
Optional. Web search queries for the following-up web search.
</pre>

<code>repeated string web_search_queries = 1 [(.google.api.field_behavior) = OPTIONAL];
</code>

@param value The webSearchQueries to add.
@return This builder for chaining.
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/GroundingMetadata.java