code: def clear(self):
          
          
          
          w1 = StringWidget(self, ref="_w1_", text=" "*20, x=1, y=1)
          w2 = StringWidget(self, ref="_w2_", text=" "*20, x=1, y=2)
          w3 = StringWidget(self, ref="_w3_", text=" "*20, x=1, y=3)
          w4 = StringWidget(self, ref="_w4_", text=" "*20, x=1, y=4)
docs: Clear Screen