# File lib/flukso/api.rb, line 35
    def execute(api)
      if api.class != Flukso::API
        raise  Flukso::General, "Cannot execute query: API object invalid"
      end
      query_url="/#{@sensor_id}?interval=#{@timerange}&unit=#{@unit}";
      #query_url="#{Flukso::BASE_SENSOR_URL}/#{@sensor_id}?interval=#{@timerange}&unit=#{@unit}";
      puts "Using query url #{query_url}" if $verbose
      response = api.perform_get(query_url) 
      return wrap_response(response);
    end