Function diversify_batch 

pub fn diversify_batch(
    archive: &mut Archive,
    fitness: &mut dyn QdBatchFitness,
    lower: &[f64],
    upper: &[f64],
    p: &DiversifierParams,
    rng: &mut Rng,
) -> Result<(Vec<f64>, f64), &'static str>

Batch-evaluation variant of diversify. CMA-ES asks and tells remain serial while each requested population can be evaluated concurrently.

Errors

Returns an error if fitness does not return one result per requested candidate.