# Functions
NewMetric associates prometheus.Collector based on Metric.Type.
NewPrometheus creates a new Prometheus instance with default configuration.
NewPrometheusWithConfig creates a new Prometheus instance with your configuration.
# Structs
Config let you configure how Prometheus works.
Metric is a definition for the name, description, type, ID, and prometheus.Collector type (i.e.
Prometheus contains the metrics gathered by the instance and its path.
PushGateway contains the configuration for pushing to a Prometheus pushgateway (optional).
# Type aliases
RequestCounterURLLabelMappingFunc is a function which can be supplied to the middleware to control
the cardinality of the request counter's "url" label, which might be required in some contexts.