You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: setting_plugins.go
    path of file: ./repos/grafana/pkg/setting
    
    the code of the file until where you have to start completion: package setting

import (
	"strings"

	"gopkg.in/ini.v1"

	"github.com/grafana/grafana/pkg/util"
)

// PluginSettings maps plugin id to map of key/value settings.
type PluginSettings map[string]map[string]string

func extractPluginSettings(sections []*ini.Section) PluginSettings {
	psMap := PluginSettings{}
	for _, section := range sections {
		sectionName := section.Name()
		if !strings.HasPrefix(sectionName, "plugin.") {
			continue
		}

		pluginID := strings.Replace(sectionName, "plugin.", "", 1)
		psMap[pluginID] = section.KeysHash()
	}

	return psMap
}

func (cfg *Cfg) readPluginSettings(iniFile *ini.File) error {
	pluginsSection := iniFile.Section("plugins")

	cfg.PluginsEnableAlpha = pluginsSection.Key("enable_alpha").MustBool(false)
	cfg.PluginsAppsSkipVerifyTLS = pluginsSection.Key("app_tls_skip_verify_insecure").MustBool(false)
	cfg.PluginSettings = extractPluginSettings(iniFile.Sections())
	cfg.PluginSkipPublicKeyDownload = pluginsSection.Key("public_key_retrieval_disabled").MustBool(false)
	cfg.PluginForcePublicKeyDownload = pluginsSection.Key("public_key_retrieval_on_startup").MustBool(false)

	cfg.PluginsAllowUnsigned = util.SplitString(pluginsSection.Key("allow_loading_unsigned_plugins").MustString(""))
	cfg.DisablePlugins = util.SplitString(pluginsSection.Key("disable_plugins").MustString(""))
	cfg.HideAngularDeprecation = util.SplitString(pluginsSection.Key("hide_angular_deprecation").MustString(""))
	cfg.ForwardHostEnvVars = util.SplitString(pluginsSection.Key("forward_host_env_vars").MustString(""))

	cfg.PluginCatalogURL = pluginsSection.Key("plugin_catalog_url").MustString("https://grafana.com/grafana/plugins/")
	cfg.PluginAdminEnable
    
func (cfg *Cfg) readPluginSettings(iniFile *ini.File) error {
	pluginsSection := iniFile.Section("plugins")

	cfg.PluginsEnableAlpha = pluginsSection.Key("enable_alpha").MustBool(false)
	cfg.PluginsAppsSkipVerifyTLS = pluginsSection.Key("app_tls_skip_verify_insecure").MustBool(false)
	cfg.PluginSettings = extractPluginSettings(iniFile.Sections())
	cfg.PluginSkipPublicKeyDownload = pluginsSection.Key("public_key_retrieval_disabled").MustBool(false)
	cfg.PluginForcePublicKeyDownload = pluginsSection.Key("public_key_retrieval_on_startup").MustBool(false)

	cfg.PluginsAllowUnsigned = util.SplitString(pluginsSection.Key("allow_loading_unsigned_plugins").MustString(""))
	cfg.DisablePlugins = util.SplitString(pluginsSection.Key("disable_plugins").MustString(""))
	cfg.HideAngularDeprecation = util.SplitString(pluginsSection.Key("hide_angular_deprecation").MustString(""))
	cfg.ForwardHostEnvVars = util.SplitString(pluginsSection.Key("forward_host_env_vars").MustString(""))

	cfg.PluginCatalogURL = pluginsSection.Key("plugin_catalog_url").MustString("https://grafana.com/grafana/plugins/")
	cfg.PluginAdminEnabled = pluginsSection.Key("plugin_admin_enabled").MustBool(true)
	cfg.PluginAdminExternalManageEnabled = pluginsSection.Key("plugin_admin_external_manage_enabled").MustBool(false)
	cfg.PluginCatalogHiddenPlugins = util.SplitString(pluginsSection.Key("plugin_catalog_hidden_plugins").MustString(""))

	// Pull disabled plugins from the catalog
	cfg.PluginCatalogHiddenPlugins = append(cfg.PluginCatalogHiddenPlugins, cfg.DisablePlugins...)

	// Plugins CDN settings
	cfg.PluginsCDNURLTemplate = strings.TrimRight(pluginsSection.Key("cdn_base_url").MustString(""), "/")
	cfg.PluginLogBackendRequests = pluginsSection.Key("log_backend_requests").MustBool(false)

	// Installation token for managed plugins
	cfg.PluginInstallToken = pluginsSection.Key("install_token").MustString("")

	return nil
}