num static method

int num(
  1. ArgResults argResults,
  2. Never usageException(
    1. String message
    )
)

Implementation

static int num(
  ArgResults argResults,
  Never Function(String message) usageException,
) {
  final num = argResults.requireParam(_name);
  final numInt = int.parse(num);
  if (numInt <= 0) {
    usageException('num is not a natural number: $num');
  }
  return numInt;
}