public com.google.cloud.vision.v1p4beta1.Product getProduct() {
      if (productBuilder_ == null) {
        return product_ == null
            ? com.google.cloud.vision.v1p4beta1.Product.getDefaultInstance()
            : product_;
      } else {
        return productBuilder_.getMessage();
      }
    }
<pre>
Required. The Product resource which replaces the one on the server.
product.name is immutable.
</pre>

<code>
.google.cloud.vision.v1p4beta1.Product product = 1 [(.google.api.field_behavior) = REQUIRED];
</code>

@return The product.
java-vision/proto-google-cloud-vision-v1p4beta1/src/main/java/com/google/cloud/vision/v1p4beta1/UpdateProductRequest.java