# File src/ruby_supportlib/phusion_passenger/plugin.rb, line 83
    def call_hook(name, *args, &block)
      last_result = nil
      if @instances
        @instances.each do |instance|
          if instance.respond_to?(name.to_sym)
            last_result = instance.__send__(name.to_sym, *args, &block)
          end
        end
      end
      return last_result
    end