# Functions
NewCounters creates a new counter vec.
NewGauges creates a new gauge vec.
NewHistograms creates a new histogram vec.
# Structs
Counters is a vec tor of counters for a each log stream.
Gauges is a vector of gauges for a each log stream.
Histograms is a vector of histograms for a each log stream.
# Interfaces
Expirable allows checking if something has exceeded the provided maxAge based on the provided currentTime.