src/vs/platform/configuration/common/configurations.ts/PolicyConfiguration/initialize
class PolicyConfiguration:	async initialize(): Promise<ConfigurationModel> {
		this.update(await this.updatePolicyDefinitions(this.defaultConfiguration.configurationModel.keys), false);
		this._register(this.policyService.onDidChange(policyNames => this.onDidChangePolicies(policyNames)));
		this._register(this.defaultConfiguration.onDidChangeConfiguration(async ({ properties }) => this.update(await this.updatePolicyDefinitions(properties), true)));
		return this._configurationModel;
	}