code: def retrieve_flags(flag_dict, flag_filter):
      
  
      return [(flag, value) for flag, value in list(flag_dict.items()) if
              isinstance(flag, (str, bytes)) and flag.startswith(flag_filter)]
docs: Read the flags from a dictionary and return them in a usable form.
  
      Will return a list of (flag, value) for all flags in "flag_dict"
      matching the filter "flag_filter".