public int getPropertyOrderingCount() {
    return propertyOrdering_.size();
  }
<pre>
Optional. The order of the properties.
Not a standard field in open api spec. Only used to support the order of
the properties.
</pre>

<code>repeated string property_ordering = 25 [(.google.api.field_behavior) = OPTIONAL];</code>

@return The count of propertyOrdering.
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/Schema.java