prow/plugins/plugins.go
func RegisterStatusEventHandler(name string, fn StatusEventHandler, help HelpProvider) {
	pluginHelp[name] = help
	statusEventHandlers[name] = fn
}
func RegisterStatusEventHandler(name string, fn StatusEventHandler, help HelpProvider) {
	pluginHelp[name] = help
	statusEventHandlers[name] = fn
}
// RegisterStatusEventHandler registers a plugin's github.StatusEvent handler.