Code:
>>> import camera
>>> dir(camera)
['__builtins__', '__doc__', '__file__', '__name__', '_camera', '_my_camera', 'ex
posure_modes', 'exposuremap', 'flash_modes', 'flashmap', 'graphics', 'image_mode
s', 'image_sizes', 'max_zoom', 'modemap', 'take_photo', 'white_balance_modes', '
whitebalancemap']
>>> camera._my_camera
<_camera.Camera object at 0x262efb0>
>>> dir(camera._my_camera)
['exposure_modes', 'flash_modes', 'image_modes', 'image_size', 'max_image_size',
'max_zoom', 'take_photo', 'white_balance_modes']
>>> dir(camera._camera)
['Camera', 'EColor16M', 'EColor4K', 'EColor64K', 'EExposureAuto', 'EExposureBack
light', 'EExposureCenter', 'EExposureNight', 'EFlashAuto', 'EFlashFillIn', 'EFla
shForced', 'EFlashNone', 'EFlashRedEyeReduce', 'EWBAuto', 'EWBCloudy', 'EWBDayli
ght', 'EWBFlash', 'EWBFluorescent', 'EWBTungsten', '__doc__', '__file__', '__nam
e__']
>>> dir(camera._camera.Camera)
['__call__', '__class__', '__cmp__', '__delattr__', '__doc__', '__getattribute__
', '__hash__', '__init__', '__name__', '__new__', '__reduce__', '__repr__', '__s
elf__', '__setattr__', '__str__']
>>> id = camera.take_photo()
>>> id
<graphics.Image object at 0x2616530>
>>> import graphics
>>> dir(grapichs)
>>> dir(graphics)
['Draw', 'FLIP_LEFT_RIGHT', 'FLIP_TOP_BOTTOM', 'Image', 'ROTATE_180', 'ROTATE_27
0', 'ROTATE_90', 'SDK12', '__all__', '__builtins__', '__doc__', '__file__', '__n
ame__', '_graphics', '_revdict', 'e32', 'screenshot']
>>> ss = graphics.screenshot()
I think there's a lot to find out on those variables in the camera module