code: def select_previous_match(self):
      if self.search_matches:
          # loop around to the last match if user hits first match
          if self.search_selection == 0:
              self.search_selection = len(self.search_matches) - 1
          else:
              self.search_selection -= 1
  
          self.highlight_match()
  
imports: import re
  import time
  import pkg_resources
  from PyQt5 import QtCore, QtGui, QtWidgets
  from PyQt5.QtCore import Qt
label_desc: Use image node_id 7 for calling the FindToolbar obj's underlying member method code with example usage: obj.select_previous_match() without return types