⍝? An error type that encapsulates the different errors that can occur fetching config
unite ConfigError {
    ⍝? 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.
    #export("upstream")
    Upstream {
        value: utf8
    },
    ⍝? 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.
    #export("io")
    Io {
        value: utf8
    },
}

⍝? Gets a single opaque config value set at the given key if it exists
#import("wasi:config/runtime", "get")
micro get(key: utf8) -> Result<Array<u8>?, ConfigError> { }

⍝? Gets a list of all set config data
#import("wasi:config/runtime", "get-all")
micro get_all() -> Result<Array<(utf8, Array<u8>)>, ConfigError> { }