OptionalloggerOptionalnoRe-download archives even if cached
OptionalonOverride the default process.stdout.write log sink
OptionalonCalled just before each variant begins download + evaluation
OptionalonCalled immediately after a variant's evaluation completes
OptionalsilentSuppress console output when true
OptionalverbosityNumeric verbosity level (0 = default, 1 = -v, 2 = -vv, …)
Logger for verbose/debug/trace output controlled by -v flags