code: public MetricBuilder withMinValue(Number value, String prettyPrintFormat) {
          min = new MetricValue(value.toString(), prettyPrintFormat);            
          return this;
      }
docs: Sets the minimum value of the metric to be built.
  
  @param value the minimum value of the metric
  @param prettyPrintFormat the format of the output (@see {@link DecimalFormat})
  @return this