docs: def move(self, direction=0):
          """
              direction = int range(0, 4)
  
              0 = Down
              1 = Left
              2 = Up
              3 = Right
          """
          direction = int(direction)
          self.position = list(self.position)
  
          if direction == 0:
              self.position[1] += 1
          elif direction == 1:
              self.position[0] -= 1
          elif direction == 2:
              self.position[1] -= 1
          elif direction == 3:
              self.position[0] += 1