Unlike in most other parsers, empty keys are not supported by ryml. It is a strange case, but unfortunately, it appeared helpful in one of our company's endeavours. ```yaml %YAML 1.2 --- m: "": "" ``` <img width="1680" alt="image" src="https://github.com/biojppm/rapidyaml/assets/61053551/67c4de64-a309-4f87-a841-85ed277d611e">