registerBlockedMember method
Implementation
List<String> registerBlockedMember(String otherMember) {
if (!isBlockedMember(otherMember)) {
var myMemberId = member.documentID;
MaintainBlocked.registerMemberAsBlocked(myMemberId,
otherMember); // not waiting, we keep in memory blocked members
blockedMembers.add(otherMember);
}
return blockedMembers;
}