@java.lang.Override
    public java.lang.String getVertexModel() {
      java.lang.Object ref = vertexModel_;
      if (ref instanceof java.lang.String) {
        return (java.lang.String) ref;
      } else {
        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        vertexModel_ = s;
        return s;
      }
    }
<pre>
Optional. The resource name of embedding model hosted in Vertex AI
Platform.
</pre>

<code>string vertex_model = 2 [(.google.api.field_behavior) = OPTIONAL];</code>

@return The vertexModel.
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/CustomProcessorSourceInfo.java