@java.lang.Deprecated
    public Builder clearVectorDistanceThreshold() {
      bitField0_ = (bitField0_ & ~0x00000004);
      vectorDistanceThreshold_ = 0D;
      onChanged();
      return this;
    }
<pre>
Optional. Only return results with vector distance smaller than the
threshold.
</pre>

<code>
optional double vector_distance_threshold = 3 [deprecated = true, (.google.api.field_behavior) = OPTIONAL];
</code>

@deprecated google.cloud.vertexai.v1.VertexRagStore.vector_distance_threshold is deprecated.
    See google/cloud/vertexai/v1/tool.proto;l=255
@return This builder for chaining.
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/VertexRagStore.java