soft_delete_policy default value is incorrect

[ryanfangk]

TL;DR

for_each = [lookup(var.soft_delete_policy, each.value, {})]

The default value of soft_delete_policy should be a string instead of an empty object, since it should be the same type as keys of the map

Expected behavior

No error should be thrown

Observed behavior

│ Error: Invalid function argument
│
│ on .terraform/modules/gcs_buckets/main.tf line 160, in resource "google_storage_bucket" "buckets":
│ 160: for_each = [lookup(var.soft_delete_policy, each.value, {})]
│ ├────────────────
│ │ while calling lookup(inputMap, key, default...)
│
│ Invalid value for "default" parameter: the default value must have the same type as the map elements.

Terraform Configuration

Here is the tfvars value I am currently using
    soft_delete_policy = {
      "development-terraform" = { retention_duration_seconds = 604800 } # 7 days
      "production-terraform"  = { retention_duration_seconds = 604800 } # 7 days
    }

Terraform Version

Terraform v1.8.3
on linux_amd64
+ provider registry.terraform.io/hashicorp/google v5.28.0
+ provider registry.terraform.io/hashicorp/google-beta v5.28.0
+ provider registry.terraform.io/hashicorp/null v3.2.2
+ provider registry.terraform.io/hashicorp/random v3.6.1
+ provider registry.terraform.io/hashicorp/time v0.11.1

Additional information

Should be an easy fix, just replace empty object {} with empty string ""

https://developer.hashicorp.com/terraform/language/functions/lookup

[luqic]

Hello! I am facing the same issue, can I check how you managed to resolve this?