src/vs/workbench/services/credentials/browser/credentialsService.ts/InMemoryCredentialsProvider/doFindPassword
class InMemoryCredentialsProvider:	private doFindPassword(service: string, account?: string): ICredential | undefined {
		return this.credentials.find(credential =>
			credential.service === service && (typeof account !== 'string' || credential.account === account));
	}