How to make block optional if the value for the below block not provided? const BackupType=new TerraformVariable(this,"BackupType",{ description:"(Require
javascript-proxy
ngx-image-cropper
mediastreamtrack
fdb
laravel-filters
flutter-3.0
addition
ycbcr
twitch-api
ara
tinkerpop
cheat-engine
apt
imce-file-browser
constinit
use-reducer
brat
data-compaction
partition-problem
event-flow
datacolumncollection
react-native-bridge
nvorbis
s3-object-tagging
visualvm
multimethod
assertraises
redaction
cgpath
ansys