import maya.cmds
from AL import usdmaya

cmds.file(new=True, force=True)


ret = cmds.loadPlugin('AL_USDMayaPlugin')
path = r'<PATH_TO_tutorialAssets_FOLDER>/primitive_world.usda'

cmds.AL_usdmaya_ProxyShapeImport(file=path, name='world', connectToTime=True, unloaded=True)

stageCache = usdmaya.StageCache.Get()
stage = stageCache.GetAllStages()[0]
sessionLayer = stage.GetSessionLayer()
stage.SetEditTarget(sessionLayer)

cmds.AL_usdmaya_TranslatePrim(forceImport=True, importPaths='/root/sphere', proxy='world')
items = ['sphere.vtx[264:266]', 'sphere.vtx[284:286]', 'sphere.vtx[303:307]', 'sphere.vtx[323:327]'] 
cmds.move(0, 0.25, 0, items, relative=True)
cmds.AL_usdmaya_TranslatePrim(teardownPaths='/root/sphere', proxy='world')


# second edit
cmds.AL_usdmaya_TranslatePrim(forceImport=True, importPaths='/root/sphere', proxy='world')
items2 = ['sphere.vtx[121]', 'sphere.vtx[140:141]', 'sphere.vtx[160:162]', 'sphere.vtx[178:181]'] 
cmds.move(0.25, 0, 0, items2, relative=True)
# Observe the sphere edits here in the Maya viewport, then run the next line to see them disappear
cmds.AL_usdmaya_TranslatePrim(teardownPaths='/root/sphere', proxy='world')