Function extractGroupMetadata

Returns {
    addressingMode: any;
    announce: boolean;
    creation: number | undefined;
    desc: any;
    descId: any;
    descOwner: string | undefined;
    descOwnerPn: string | undefined;
    descOwnerUsername: any;
    descTime: number | undefined;
    ephemeralDuration: number | undefined;
    id: any;
    isCommunity: boolean;
    isCommunityAnnounce: boolean;
    joinApprovalMode: boolean;
    linkedParent: any;
    memberAddMode: boolean;
    notify: any;
    owner: string | undefined;
    owner_country_code: any;
    ownerPn: string | undefined;
    ownerUsername: any;
    participants: any;
    restrict: boolean;
    size: number | undefined;
    subject: any;
    subjectOwner: any;
    subjectOwnerPn: any;
    subjectOwnerUsername: any;
    subjectTime: number | undefined;
}