from maya.app.renderSetup.model import renderSetup
from render_setup import rs_utils
rs = renderSetup.instance()

def renderToggle(*args):
   for layer in rs.getRenderLayers():
      renderable = not layer.isRenderable()
      layer.setRenderable(renderable)
def layerClose(*args):
   rs_utils.collapse_all()

if cmds.window('LazyTool', ex = True):
      cmds.deleteUI('LazyTool')

cmds.window( title='LazyTool', widthHeight=(275, 55) )
cmds.columnLayout(adjustableColumn=True)
cmds.button(label='RenderSwitch', command=renderToggle, bgc=[.45,.75,.45])
cmds.button(label='CloseAllLayers', command=layerClose, bgc=[.35,.187,.240])
cmds.showWindow()