# File lib/apipie/dsl_definition.rb, line 309
      def param(param_name, validator, desc_or_options = nil, options = {}, &block) #:doc:
        return unless Apipie.active_dsl?
        _apipie_dsl_data[:params] << [param_name,
                                      validator,
                                      desc_or_options,
                                      options.merge(:param_group => @_current_param_group),
                                      block]
      end