Aws secretsmanager create-secret --secret-string using terraform

Terraform Providers AWS
1

I dont see option to set “–secret-string” (as you see below AWS CLI command) in terrafrom using resource “aws_secretsmanager_secret”, Is this option not available in terrafrom aws_secretsmanager_secret or Is there other way to pass this?

aws secretsmanager create-secret \
--name production/ec/user1 \
--secret-string \
'{
   "user_arn": "arn:aws:elasticache:us-east-1:123456xxxx:user:user1", 
    "username":"user1"
 }'