class_docstr: Main spectrum plot
docstr: Update min. peak hold curve
docstr_tok: ["Update","min",".","peak","hold","curve"]
code: def update_peak_hold_min(self, data_storage, force=False):
      """Update min. peak hold curve"""
      if data_storage.x is None:
          return
  
      if self.peak_hold_min or force:
          self.curve_peak_hold_min.setData(
              data_storage.x, data_storage.peak_hold_min
          )
          if force:
              self.curve_peak_hold_min.setVisible(self.peak_hold_min)
  
imports: import collections, math
  from Qt import QtCore
  import pyqtgraph
label_desc: Use image node_id 15 for calling the SpectrumPlotWidget obj's underlying member method code with example usage: obj.update_peak_hold_min(data_storage, force) without return types