"Correct" way to read custom fields in ```onepassword_item``` data source

I found this issue comment helpful: https://github.com/1Password/terraform-provider-onepassword/issues/117#issuecomment-2059385999

and ended up with
```
data "onepassword_item" "terraform" {
vault = "MyVault"
title = "MyTerraformItem"
}

locals {
op_terraform_fields = { for f in data.onepassword_item.terraform.section[0].field : f.label => {
id = f.id
purpose = f.purpose
type = f.type
value = f.value
}
}

# accessed like so: local.op_terraform_sections["Did You Get"].fields["that thing I sent you"].value
op_terraform_sections = { for s in data.onepassword_item.terraform.section : s.label => {
id = s.id
fields = { for f in s.field : f.label => {
id = f.id
purpose = f.purpose
type = f.type
value = f.value
} }
} if s.label != "" }
}
```

and then the 'fields' one is the sectionless section found at [0], and used by me as

provider "aws" {
region = "us-east-1"
access_key = local.op_terraform_fields["ACCESS_KEY"].value
secret_key = local.op_terraform_fields["SECRET_ACCESS_KEY"].value
}