Context for initializing CommonFields.
Fields available to all commands. Each enum represents some semantics and knows how to extract relevant data from a CommonFieldContext.
Generic field for dumping different types of models. It’s either a CommonField or a FieldId that extracts a Field from a given model. It represents a unified interface for dumpable items.
Try to read $HOME/.config/below/belowrc file and generate a list of keys which will be used as fields. Any errors happen in this function will directly trigger a panic.