public java.lang.String getOrderBy() {
      java.lang.Object ref = orderBy_;
      if (!(ref instanceof java.lang.String)) {
        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        orderBy_ = s;
        return s;
      } else {
        return (java.lang.String) ref;
      }
    }
<pre>
Comma-separated list of fields that that specify the order of the results.
Default sorting order for a field is ascending. To specify descending order
for a field, append a " desc" suffix.
If not specified, the results will be returned in an unspecified order.
</pre>

<code>string order_by = 5;</code>

@return The orderBy.
java-workflows/proto-google-cloud-workflows-v1beta/src/main/java/com/google/cloud/workflows/v1beta/ListWorkflowsRequest.java