code: def strip_context_items(self, a_string):
          
          strings_to_strip = [
              r"\[edit.*\]",
              r"\{master:.*\}",
              r"\{backup:.*\}",
              r"\{line.*\}",
              r"\{primary.*\}",
              r"\{secondary.*\}",
          ]
  
          response_list = a_string.split(self.RESPONSE_RETURN)
          last_line = response_list[-1]
  
          for pattern in strings_to_strip:
              if re.search(pattern, last_line):
                  return self.RESPONSE_RETURN.join(response_list[:-1])
          return a_string
docs: Strip Juniper-specific output.
  
          Juniper will also put a configuration context:
          [edit]
  
          and various chassis contexts:
          {master:0}, {backup:1}
  
          This method removes those lines.