@java.lang.Override
  public java.lang.String getProductSetId() {
    java.lang.Object ref = productSetId_;
    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();
      productSetId_ = s;
      return s;
    }
  }
<pre>
The ProductSet that contains the Products to delete. If a Product is a
member of product_set_id in addition to other ProductSets, the Product will
still be deleted.
</pre>

<code>string product_set_id = 1;</code>

@return The productSetId.
java-vision/proto-google-cloud-vision-v1p4beta1/src/main/java/com/google/cloud/vision/v1p4beta1/ProductSetPurgeConfig.java