public static Bootstrapper AddSettings(this Bootstrapper bootstrapper, IEnumerable <KeyValuePair <string, object> > settings) =>
 bootstrapper.ConfigureSettings(x => x.AddOrReplaceRange(settings));
 public static Bootstrapper AddSettingIfNonExisting(this Bootstrapper bootstrapper, string key, object value) =>
 bootstrapper.ConfigureSettings(x => x.AddIfNonExisting(key, value));
 public static Bootstrapper AddSettingIfNonExisting(this Bootstrapper bootstrapper, KeyValuePair <string, object> setting) =>
 bootstrapper.ConfigureSettings(x => x.AddIfNonExisting(setting.Key, setting.Value));
 public static Bootstrapper AddSettingsIfNonExisting(this Bootstrapper bootstrapper, IEnumerable <KeyValuePair <string, object> > settings) =>
 bootstrapper.ConfigureSettings(x => x.AddRangeIfNonExisting(settings));
 public static Bootstrapper AddSetting(this Bootstrapper bootstrapper, string key, object value) =>
 bootstrapper.ConfigureSettings(x => x[key] = value);
 public static Bootstrapper AddSetting(this Bootstrapper bootstrapper, KeyValuePair <string, object> setting) =>
 bootstrapper.ConfigureSettings(x => x[setting.Key] = setting.Value);