<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def geom_wh(geom):
 """Compute width and height of geometry in projected units """

    e = geom.GetEnvelope()
    h = e[1] - e[0]
    w = e[3] - e[2]
    return w, h