text: """Class implementation for the animation_skew_y interface.
  """
  
  import warnings
  from typing import Union
  
  from apysc._animation.animation_interface_base import AnimationInterfaceBase
  from apysc._animation.animation_skew_y import AnimationSkewY
  from apysc._animation.easing import Easing
  from apysc._type.int import Int
  
  
  class AnimationSkewYInterface(AnimationInterfaceBase):
  
      def _animation_skew_y(
              self,
              skew_y: Union[int, Int],
              *,
              duration: Union[int, Int] = 3000,
              delay: Union[int, Int] = 0,
              easing: Easing = Easing.LINEAR) -> AnimationSkewY:
          """
          **Important notes**
          Currently this interface does not work correctly.
          For more details please see:
          https://github.com/svgdotjs/svg.js/issues/1222
  
          Set the skew-y animation animation.
  
          Notes
          -----
          To start this animation, you need to call the `start` method of
          the returned instance.
  
          Parameters
          ----------
          skew_y : int or Int
              The final skew-y of the animation.
          duration : int or Int, default 3000
              Milliseconds before an animation ends.
          delay : int or Int, default 0
              Milliseconds before an animation starts.
          easing : Easing, default Easing.LINEAR
              Easing setting.
  
          Returns
          -------
          animation_skew_y : AnimationSkewY
              Created animation setting instance.
  
          References
          ----------
          - Animation interfaces duration setting document
              - https://simon-ritchie.github.io/apysc/animation_duration.html
          - Animation interfaces delay setting document
              - https://simon-ritchie.github.io/apysc/animation_delay.html
          - Each animation interface return value document
              - https://bit.ly/2XOoa8w
          - Sequential animation setting document
              - https://simon-ritchie.github.io/apysc/sequential_animation.html
          - animation_parallel interface document
              - https://simon-ritchie.github.io/apysc/animation_parallel.html
          - Easing enum document
              - https://simon-ritchie.github.io/apysc/easing_enum.html
  
          Examples
          --------
          >>> import apysc as ap
          >>> stage: ap.Stage = ap.Stage()
          >>> sprite: ap.Sprite = ap.Sprite()
          >>> sprite.graphics.begin_fill(color='#0af')
          >>> rectangle: ap.Rectangle = sprite.graphics.draw_rect(
          ...     x=50, y=50, width=50, height=50)
          >>> _ = rectangle._animation_skew_y(
          ...     skew_y=50,
          ...     duration=1500,
          ...     easing=ap.Easing.EASE_OUT_QUINT,
          ... ).start()
          """
          warnings.warn(
              'Currently the `animation_skew_y` interface does not '
              'work correctly. Maybe this issue will be fixed in future '
              'versions. For more details, please see '
              'https://github.com/svgdotjs/svg.js/issues/1222')
          animation_skew_y: AnimationSkewY = AnimationSkewY(
              target=self,
              skew_y=skew_y,
              duration=duration,
              delay=delay,
              easing=easing)
          return animation_skew_y
  