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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def coupleTo_vswitch(userid, vswitch_name):
 """ Couple to vswitch. Input parameters: :userid: USERID of the guest, last 8 if length > 8 :network_info: dict of network info """

    print("\nCoupleing to vswitch for %s ..." % userid)
    vswitch_info = client.send_request('guest_nic_couple_to_vswitch', 
                                       userid, '1000', vswitch_name)

    if vswitch_info['overallRC']:
        raise RuntimeError("Failed to couple to vswitch for guest %s!\n%s" % 
                           (userid, vswitch_info))
    else:
        print("Succeeded to couple to vswitch for guest %s!" % userid)