code: def adjustHeadingPointer(self):
          '''Adjust the value of the heading pointer.'''
          self.headingText.set_text(str(self.heading))
          self.headingText.set_size(self.fontSizef adjustHeadingPointer(self):
          '''Adjust the value of the heading pointer.'''
          self.headingText.set_text(str(self.heading))
          self.headingText.set_size(self.fontSize)
docs: Adjust the value of the heading pointer.