content: SCENARIO_DESCRIPTION_TEMPLATE = """Here is a brief description of the scenario under which the given response was generated.
  {scenario_description}
  """
  
  
  def parse_scenario_description(scenario_description):
      """
      Parses a scenario description and extracts variables enclosed within '{{' and '}}' or '{' and '}'.
  
      Args:
          scenario_description (str): The scenario description containing variables.
  
      Returns:
          tuple: A tuple containing the parsed scenario description and a list of extracted variables.
                 The first element is the parsed scenario description with variables formatted as '{var}'.
                 The second element is a list of extracted variables.
      """
      scenario_vars = []
      if scenario_description is not None and len(scenario_description):
          scenario_description = SCENARIO_DESCRIPTION_TEMPLATE.format(
              scenario_description=scenario_description
          )
          if "{{" in scenario_description:
              scenario_vars = [
                  x.split("}}")[0] for x in scenario_description.split("{{")[1:]
              ]
              for var in scenario_vars:
                  scenario_description = scenario_description.replace(
                      "{{" + var + "}}", "{" + var + "}"
                  )
          elif "{" in scenario_description:
              scenario_vars = [
                  x.split("}")[0] for x in scenario_description.split("{")[1:]
              ]
      else:
          scenario_description = ""
      return scenario_description, scenario_vars
  