code: def setMinimumTrailOpacity(self, minimumTrailOpacity):
      self.mMinimumTrailOpacity = minimumTrailOpacity
  
imports: from math import ceil
  from PyQt5.QtCore import *
  from PyQt5.QtGui import *
  from PyQt5.QtWidgets import *
label_desc: Use image node_id 30 for calling the Spinner obj's underlying member method code with example usage: obj.setMinimumTrailOpacity(minimumTrailOpacity) without return types