text: // @flow
  // @see https://developers.google.com/apps-script/reference/contacts/contact-group
  
  interface gas$Contacts$ContactGroup {
    addContact(contact: gas$Contacts$Contact): gas$Contacts$ContactGroup;
    deleteGroup(): void;
    getContacts(): gas$Contacts$Contact[];
    getId(): string;
    getName(): string;
    isSystemGroup(): boolean;
    removeContact(contact: gas$Contacts$Contact): gas$Contacts$ContactGroup;
    setName(name: string): gas$Contacts$ContactGroup;
  }
  