TuneTot scan crashes due to non-existing function

See log output:

[TuneTot        ] - INFO    Initializing TuneTot...
...
[TuneTot        ] - INFO    Starting scan...
[TuneTot        ] - INFO    Tune ToT for: SYNC
[TuneTot        ] - INFO    Setting IBIAS_KRUM_SYNC = 35 (iteration 1)
Traceback (most recent call last):
  File "tune_tot.py", line 179, in <module>
    scan.start(**local_configuration)
  File ".../bdaq53/bdaq53/scan_base.py", line 676, in start
    self.scan(**kwargs)
  File "tune_tot.py", line 123, in scan
    self.chip.write_register(register=actual_fb_curr_register, data=feedback_current[active_FE], write=True)
AttributeError: 'RD53A' object has no attribute 'write_register'