code: def get_parsed_context(context_arg):
      
      if not context_arg:
          logger.debug("pipeline invoked without context arg set. For "
                       "this keyvaluepairs parser you're looking for "
                       "something like: "
                       "pypyr pipelinename 'key1=value1,key2=value2'.")
          return None
  
      logger.debug("starting")
      # for each comma-delimited element, project key=value
      return dict(element.split('=') for element in context_arg.split(','))
docs: Parse input context string and returns context as dictionary.