def navigation_LOC_cb(userdata, request):
     update = AcknowledgmentRequest()
     update.input = LOCALIZATION_MODE
     return update
 def navigation_LOC_cb(userdata,request):
     update = AcknowledgmentRequest()
     update.input = LOCALIZATION_MODE
     return update
 def navigation_MAP_cb(userdata, request):
     update = AcknowledgmentRequest()
     update.input = MAPPING_MODE
     return update
 def navigation_MAP_cb(userdata,request):
     update = AcknowledgmentRequest()
     update.input = MAPPING_MODE
     return update