interface runtime {
/// An error type that encapsulates the different errors that can occur fetching config
variant config-error {
/// This indicates an error from an "upstream" config source.
/// As this could be almost _anything_ (such as Vault, Kubernetes ConfigMaps, KeyValue buckets, etc),
/// the error message is a string.
upstream(string),
/// This indicates an error from an I/O operation.
/// As this could be almost _anything_ (such as a file read, network connection, etc),
/// the error message is a string.
/// Depending on how this ends up being consumed,
/// we may consider moving this to use the `wasi:io/error` type instead.
/// For simplicity right now in supporting multiple implementations, it is being left as a string.
io(string),
}
/// Gets a single opaque config value set at the given key if it exists
get: func(
/// A string key to fetch
key: string
) -> result<option<string>, config-error>;
/// Gets a list of all set config data
get-all: func() -> result<list<tuple<string, string>>, config-error>;
}