public ChannelBuilder AllowPermissionForMember(int memberNumber, string permission) { var member = _group.Member(memberNumber); _builder.AddBuildAction(async() => await _groupsModuleFacade.SendAsync(new AllowPermissionForMemberCommand(_builder._userIdContext, _group.GroupId, _channel.ChannelId, member.UserId, permission))); return(this); }