Field fieldPairs are great! I use it to print arbitrary structures and deserialize json in a more looser way:
[https://github.com/treeform/print/blob/master/src/print.nim#L79](https://github.com/treeform/print/blob/master/src/print.nim#L79) [https://github.com/treeform/jsutils/blob/master/src/jsutils/jsons.nim#L28](https://github.com/treeform/jsutils/blob/master/src/jsutils/jsons.nim#L28)
