old_contents: # -*- coding: utf-8 -*-
  # Copyright (c) 2015, Vispy Development Team.
  # Distributed under the (new) BSD License. See LICENSE.txt for more info.
  """
  Cameras are responsible for determining which part of a scene is displayed
  in a viewbox and for handling user input to change the view.
  
  Several Camera subclasses are available to customize the projection of the 
  scene such as 3D perspective and orthographic projections, 2D 
  scale/translation, and other specialty cameras. A variety of user interaction
  styles are available for each camera including arcball, turntable, 
  first-person, and pan/zoom interactions.
  
  Internally, Cameras work by setting the transform of a SubScene object such 
  that a certain part of the scene is mapped to the bounding rectangle of the 
  ViewBox.
  """
  from ._base import make_camera  # noqa
  from .base_camera import BaseCamera  # noqa
  from .panzoom import PanZoomCamera  # noqa
  from .arcball import ArcballCamera  # noqa
  from .turntable import TurntableCamera  # noqa
  from .fly import FlyCamera  # noqa
  from .magnify import MagnifyCamera, Magnify1DCamera  # noqa
  
new_contents: # -*- coding: utf-8 -*-
  # Copyright (c) 2015, Vispy Development Team.
  # Distributed under the (new) BSD License. See LICENSE.txt for more info.
  """
  Cameras are responsible for determining which part of a scene is displayed
  in a viewbox and for handling user input to change the view.
  
  Several Camera subclasses are available to customize the projection of the 
  scene such as 3D perspective and orthographic projections, 2D 
  scale/translation, and other specialty cameras. A variety of user interaction
  styles are available for each camera including arcball, turntable, 
  first-person, and pan/zoom interactions.
  
  Internally, Cameras work by setting the transform of a SubScene object such 
  that a certain part of the scene is mapped to the bounding rectangle of the 
  ViewBox.
  """
  __all__ = ['ArcballCamera', 'BaseCamera', 'FlyCamera', 'MagnifyCamera',
             'Magnify1DCamera', 'PanZoomCamera', 'TurntableCamera']
  
  from ._base import make_camera  # noqa
  from .base_camera import BaseCamera  # noqa
  from .panzoom import PanZoomCamera  # noqa
  from .arcball import ArcballCamera  # noqa
  from .turntable import TurntableCamera  # noqa
  from .fly import FlyCamera  # noqa
  from .magnify import MagnifyCamera, Magnify1DCamera  # noqa
  
subject: add __all__ string to scene/cameras/__init__.py