action_signature

# File actioncable/lib/action_cable/channel/base.rb, line 292
        def action_signature(action, data)
          (+"#{self.class.name}##{action}").tap do |signature|
            arguments = data.except("action")

            if arguments.any?
              arguments = parameter_filter.filter(arguments)
              signature << "(#{arguments.inspect})"
            end
          end
        end