CustomizedMetricSpecification constructor
      
      CustomizedMetricSpecification({ 
    
    
- required String metricName,
- required String namespace,
- required MetricStatistic statistic,
- List<MetricDimension> ? dimensions,
- String? unit,
Implementation
CustomizedMetricSpecification({
  required this.metricName,
  required this.namespace,
  required this.statistic,
  this.dimensions,
  this.unit,
});