-record(activity, {
    name :: binary(),
    input :: any(),
    input_codec :: aion@codec:codec(any()),
    output_codec :: aion@codec:codec(any()),
    runner :: fun((any()) -> {ok, any()} | {error, aion@error:activity_error()}),
    retry_policy :: gleam@option:option(aion@activity:retry_policy()),
    timeout :: gleam@option:option(aion@duration:duration()),
    heartbeat :: gleam@option:option(aion@duration:duration())
}).