NewMetricBuilder creates a new MetricBuilder object with the default values for the field.

Counter denotes that the type of the collector object should be a Prometheus Counter.

Histogram denotes that the type of the collector object should be a Prometheus Histogram.

MetricBuilder is the basic metric type that must be used by any potential metric added to the system.

MetricOpts contains the properties that are required to create a MetricBuilder object.

MetricType defines what types of metrics can be created.