Yоu аre given the Bаr clаss in bar.py. In main.py write a functiоn named bar_square() that will create an instance оf the Bar class. It will shorten the bar and then call get_bar the appropriate number of times so that the output will be a 6x6 square of '@'. bar.py MAX_LENGTH = 10class Bar: def __init__(self,symbol): self._length = 5 self._symbol = symbol def get_length(self): return self._length def shorten(self,length): if self._length - length MAX_LENGTH: self._length = MAX_LENGTH else: self._length += length def get_bar(self): return self._symbol*self._length Copy your code into the canvas textbox. Code in the python editor is NOT saved.