code: def gen_reaction(args, resource, depletable=0):
      
      task = resource.lower()
      if task[:3] == "res":
          task = task[3:]
      while task[-1].isdigit():
          task = task[:-1]
  
      name = resource[3:]
      return "".join(["REACTION ", name, " ", task, " process:resource=",
                      resource, ":value=", str(args.taskValDict[task]), ":type=",
                      args.rxnType, ":frac=", str(args.frac), ":max=",
                      str(args.resMax), ":depletable=", str(int(depletable)),
                      " requisite:max_count=", str(args.maxCount), "\n"])
docs: Returns a line of text to add to an environment file, initializing a
      reaction that uses the resource specified in the first
      argument to perform the associated task (resource names are expected to
      be of the form "resTASK#" where "TASK" corresponds
      to the task the resource is associated with and # is an integer uniquely
      identifying that specific gradient resource. For
      example, the first AND resource would be named resAND0). An optional
      second argument (int) specifies whether or not the reaction
      should deplete the resource (by default it will not).