def _rewrap_array(result)
      if @wrap_results
        newcoll = @collection.class.new(result)
        self.class.new(newcoll, @wrapfunc_in, @wrapfunc_out)
      else
        @collection.class.new(result.map(&@wrapfunc_out))
      end
    end
def _rewrap_array(result)
      if @wrap_results
        newcoll = @collection.class.new(result)
        self.class.new(newcoll, @wrapfunc_in, @wrapfunc_out)
      else
        @collection.class.new(result.map(&@wrapfunc_out))
      end
    end
Used to wrap results from various Enumerable methods that are defined
 to return an array