Function decide_batch 

pub fn decide_batch(
    path: &Path,
    feature: Option<&str>,
    choice: BatchChoice<'_>,
    state: Option<&Path>,
    via: Via,
) -> CommandResult

DecideBatch: decides the listed calls of a run’s batch, each once — never for the task or the run — recorded per call with who decided and through what; refused when the list changed since the person saw it.