PromEx.Plugin.manual_metrics

You're seeing just the callback manual_metrics, go back to PromEx.Plugin module for more information.

Specs

The manual_metrics/1 callback returns the configured manual based metrics that the plugin exposes. If the plugin does not expose any manual style metrics, there is a default implementation of this function that returns an empty list. In other words, if your plugin does not expose any manual style metrics, there is no action needed on your part.

This function is expected to either return a single PromEx.Plugins.Manual struct or a list of PromEx.Plugins.Manual structs.