code: def set_min_alpha(min_value):
      max_value = lut.alpha_range[1]
      if min_value > max_value:
          # force the movement of the maximum value
          max_value = min_value
          pl.slider_widgets[1].GetRepresentation().SetValue(max_value)
      lut.alpha_range = (min_value, max_value)
  
imports: import pyvista
  from pyvista import examples
label_desc: Use image node_id 1 for calling a global function with example usage: set_min_alpha(min_value) without return types