module ActionCable::Connection::Identification

def connection_gid(ids) 

def connection_gid(ids)
  ids.map do |o|
    if o.respond_to? :to_gid_param
      o.to_gid_param
    else
      o.to_s
    end
  end.sort.join(":")
end

def connection_identifier

Return a single connection identifier that combines the value of all the registered identifiers into a single gid. 
def connection_identifier
  unless defined? @connection_identifier
    @connection_identifier = connection_gid identifiers.filter_map { |id| instance_variable_get("@#{id}") }
  end
  @connection_identifier
end