code: def get_parsed_context(context_arg):
      
      assert context_arg, ("pipeline must be invoked with context arg set. For "
                           "this json parser you're looking for something "
                           "like: "
                           "pypyr pipelinename './myjsonfile.json'")
      logger.debug("starting")
      # open the json file on disk so that you can initialize the dictionary
      logger.debug(f"attempting to open file: {context_arg}")
      with open(context_arg) as json_file:
          payload = json.load(json_file)
  
      logger.debug(f"json file loaded into context. Count: {len(payload)}")
      logger.debug("done")
      return payload
docs: Parse input context string and returns context as dictionary.