Hi,  I have some simple code that I'm trying to return the value for a 
floatSliderGrp but Im not sure why is failing. Any pointers for what Im 
doing wrong?

import maya.cmds as cmds

def intensity_value(*args): 
    selection = cmds.ls( selection=True )
    intValue = cmds.floatSliderGrp('Intensity', query=True, value=True)
    for sel in selection:
        cmds.setAttr('{0}.intensity'.format(sel),intValue) 

def exposure_value(*args): 
    selection = cmds.ls( selection=True )
    expoValue = cmds.floatSliderGrp('Exposure', query=True, value=True)
    for sel in selection:
        cmds.setAttr('{0}.aiExposure'.format(sel),expoValue)

def myWindow():
    if cmds.window('ws_lightParameter', exists = True):
       cmds.deleteUI('ws_lightParameter')
       
    cmds.window('ws_lightParameter')
    cmds.columnLayout() 
    cmds.floatSliderGrp(label='Intensity', field=True, maxValue=50.0, 
value=0, cc= intensity_value) 
    cmds.floatSliderGrp(label='Exposure', field=True, maxValue=50.0, 
value=0, cc= exposure_value) 
    cmds.showWindow('ws_lightParameter')

myWindow()

thanks!

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