code: def _tuplecheck(newvalue, dtype=str):
      
  
      if isinstance(newvalue, list):
          newvalue = tuple(newvalue)
  
      if isinstance(newvalue, str):
          newvalue = newvalue.rstrip(")").strip("(")
          try:
              newvalue = tuple([dtype(i.strip()) for i in newvalue.split(",")])
  
          ## Type error is thrown by tuple if it's applied to a non-iterable.
          except TypeError:
              newvalue = tuple(dtype(newvalue))
  
          ## If dtype fails to cast any element of newvalue
          except ValueError:
              LOGGER.info("Assembly.tuplecheck() failed to cast to {} - {}"\
                          .format(dtype, newvalue))
              raise
  
          except Exception as inst:
              LOGGER.info(inst)
              raise SystemExit(\
              "\nError: Param`{}` is not formatted correctly.\n({})\n"\
                   .format(newvalue, inst))
  
      return newvalue
docs: Takes a string argument and returns value as a tuple.
      Needed for paramfile conversion from CLI to set_params args