code: def gen_res(args, resource, inflow, outflow):
      
      return "".join(["RESOURCE ", resource, ":inflow=", str(inflow),
                      ":outflow=", str(outflow), "\n"])
docs: Returns a line of text to add to an environment file, initializing a
      standard resource with the specified name (string), inflow(int), and
      outflow(int)