Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!
Tips and Traps¶
The YAML specification does not forbid duplicated keys.
serde-yamlignores duplicated keys except the last one silently, by default. To overwrite this behavior, you have to define your own struct and use the tag serde_with::rust::maps_duplicate_key_is_error