# Gauge constructor

Gauge(String name, String description, double min, double max)

## Implementation

    Gauge(String name, String description, this.min, this.max)
        : super(name, description) {
      if (min is! double) {
        throw new ArgumentError('min must be a double');
      }
      if (max is! double) {
        throw new ArgumentError('max must be a double');
      }
      if (!(min < max)) {
        throw new ArgumentError('min must be less than max');
      }
      _value = min;
    }