docs: def _verify_shape_bounds(shape, bounds):
      """Verify that shape corresponds to bounds apect ratio."""
      if not isinstance(shape, (tuple, list)) or len(shape) != 2:
          raise TypeError(
              "shape must be a tuple or list with two elements: %s" % str(shape)
          )
      if not isinstance(bounds, (tuple, list)) or len(bounds) != 4:
          raise TypeError(
              "bounds must be a tuple or list with four elements: %s" % str(bounds)
          )
      shape = Shape(*shape)
      bounds = Bounds(*bounds)
      shape_ratio = shape.width / shape.height
      bounds_ratio = (bounds.right - bounds.left) / (bounds.top - bounds.bottom)
      if abs(shape_ratio - bounds_ratio) > DELTA:
          min_length = min([
              (bounds.right - bounds.left) / shape.width,
              (bounds.top - bounds.bottom) / shape.height
          ])
          proposed_bounds = Bounds(
              bounds.left,
              bounds.bottom,
              bounds.left + shape.width * min_length,
              bounds.bottom + shape.height * min_length
          )
          raise ValueError(
              "shape ratio (%s) must equal bounds ratio (%s); try %s" % (
                  shape_ratio, bounds_ratio, proposed_bounds
              )
          )