error in temporal algebra

[petrasovaa]

In the example in the third time series tutorial (algebra) I am getting this error:

# Get time series with month of maximum LST
expression="month_max_lst = if({during}, lst_daily == tmap(lst_maximum), start_month(), null())"

gs.run_command("t.rast.algebra",
               basename="month_max_lst",
               expression=expression,
               suffix="gran",
               nprocs=4)

Traceback (most recent call last):
  File "/home/akratoc/dev/grass/grass_main/dist.x86_64-pc-linux-gnu/scripts/t.rast.algebra", line 146, in <module>
    sys.exit(main())
             ^^^^^^
  File "/home/akratoc/dev/grass/grass_main/dist.x86_64-pc-linux-gnu/scripts/t.rast.algebra", line 136, in main
    pc = p.parse(expression, basename, gs.overwrite())
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/akratoc/dev/grass/grass_main/dist.x86_64-pc-linux-gnu/etc/python/grass/temporal/temporal_raster_algebra.py", line 126, in parse
    self.parser.parse(expression)
  File "/usr/lib/python3/dist-packages/ply/yacc.py", line 333, in parse
    return self.parseopt_notrack(input, lexer, debug, tracking, tokenfunc)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/ply/yacc.py", line 1201, in parseopt_notrack
    tok = call_errorfunc(self.errorfunc, errtoken, self)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/ply/yacc.py", line 192, in call_errorfunc
    r = errorfunc(token)
        ^^^^^^^^^^^^^^^^
  File "/home/akratoc/dev/grass/grass_main/dist.x86_64-pc-linux-gnu/etc/python/grass/temporal/temporal_algebra.py", line 3416, in p_error
    raise SyntaxError(
SyntaxError: syntax error on line 1, position 42 token TMAP near 'tmap' expression 'month_max_lst = if({during}, lst_daily == tmap(lst_maximum), start_month(), null())'

[petrasovaa]

Could you perhaps run through this whole tutorial, I am getting errors from other examples as well...