Create a metric record having default values for its metric metricId, count, total, min, and max attributes.
Declared in <balm_metricrecord.h>
MetricRecord();The default metricId is the invalid id value, the default count is 0, the default total is 0.0, the default min is the defined k_DEFAULT_MIN constant (the representation for positive infinity), and the default max is the defined k_DEFAULT_MAX constant (the representation for negative infinity).