code: def new(cls, shapes, start_x, start_y, x_scale, y_scale):
          
          return cls(
              shapes, int(round(start_x)), int(round(start_y)),
              x_scale, y_scale
          )
docs: Return a new |FreeformBuilder| object.
  
          The initial pen location is specified (in local coordinates) by
          (*start_x*, *start_y*).