How to use complex types (map, list) in variables with v0.19 ?

[akomlik]

The migration guide says to define variables in the input block: Whenever you run a Terragrunt command, such as terragrunt apply, Terragrunt will make these variables available to your Terraform module as environment variables

However, if the variable of complex type how it this even possible to pass it as environment variable?

for example, in our prior (v.0.18) terraform.tfvars for Aiven Kafka module we have now:

USER_CONFIG = {
ip_filter = [
"x.y.z.y/32",
]
kafka_version = "2.2"
}

[akomlik]

Reading up on documentation I found that such complex structures will be translated to a quoted strings in json format. I guess this can be closed