Prometheus Gauge methods

The Gauge class provides a metric that can increase or decrease.

Table 1. Class methods
Method Description 
prometheus.Gauge.create(
  name STRING,
  description STRING,
  [ labels ] )
RETURNS prometheus.Gauge
 Creates a new gauge metric with the specified name, description, and labels.
Table 2. Object methods
Method Description 
inc( [ labels ] )
 Increases the gauge by one for the specified label values. 
dec( [ labels ] )
 Decreases the gauge by one for the specified label values. 
add( value FLOAT, [ labels ] )
 Adds a float value to the gauge for the specified label values. 
sub( value FLOAT, [ labels ] )
 Subtracts a float value from the gauge for the specified label values. 
set( value FLOAT, [ labels ] )
 Sets the gauge to a specific float value for the specified label values.