src/vs/workbench/api/browser/mainThreadConfiguration.ts/MainThreadConfiguration/_updateValue
class MainThreadConfiguration:	private _updateValue(key: string, value: any, configurationTarget: ConfigurationTarget, overriddenValue: any | undefined, overrides: IConfigurationOverrides, scopeToLanguage: boolean | undefined): Promise<void> {
		overrides = scopeToLanguage === true ? overrides
			: scopeToLanguage === false ? { resource: overrides.resource }
				: overrides.overrideIdentifier && overriddenValue !== undefined ? overrides
					: { resource: overrides.resource };
		return this.configurationService.updateValue(key, value, overrides, configurationTarget, true);
	}