class_docstr: Class to link multiple Brain objects.
code: def set_fmin(self, value):
      self.leader.update_lut(fmin=value)
  
file_path: mne-python/mne/viz/_brain/_linkviewer.py
imports: import numpy
  from ...utils import warn
  from ..ui_events import link
label_desc: Use image node_id 2 for calling the _LinkViewer obj's underlying member method code with example usage: obj.set_fmin(value) without return types