@ConvertFrom provides the deserializer with the path and file name to a pre-existing config file from an old config library. The deserializer will do its best to scrape still-relevant data from the old file, and then discard it.

Supported file types:

• .toml
• .json
• .json5
• .jsonc

The below examples will read an old file ./minecraft/config/example/config.json and attempt to scrape as much relevant data from it as possible by converting it to TOML first and then using that converted file as input to the deserializer.

@ConvertFrom(fileName = "config.json", folder = "example")
public class ConfigImpl extends Config {
    public ConfigImpl {
        super(new Identifier.of("example", "config"));
    }
    //config stuff go here
}