Fix tests

Author: bonclay7

internal/service/amp/service_package_gen.go

@@ -112,6 +112,10 @@ This resource supports the following arguments:
 * `workspace_id` - (Required) The ID of the workspace to attach the resource-based policy to.
 * `policy_document` - (Required) The JSON policy document to use as the resource-based policy. This policy defines the permissions that other AWS accounts or services have to access your workspace.
 
+The following arguments are optional:
+
+* `region` - (Optional) Region where this resource will be [managed](https://docs.aws.amazon.com/general/latest/gr/rande.html#regional-endpoints). Defaults to the Region set in the [provider configuration](https://registry.terraform.io/providers/hashicorp/aws/latest/docs#aws-configuration-reference).
+
 ## Attribute Reference
 
 In addition to all arguments above, the following attributes are exported:
@@ -159,4 +163,4 @@ Using `terraform import`, import AMP Resource Policies using the workspace ID. F
 * Only Prometheus-compatible APIs can be used for workspace sharing. Non-Prometheus-compatible APIs added to the policy will be ignored.
 * If your workspace uses customer-managed KMS keys for encryption, you must grant the principals in your resource-based policy access to those KMS keys through KMS grants.
 * The resource ARN in the policy document must match the workspace ARN that the policy is being attached to.
-* Resource policies enable cross-account access and fine-grained permissions for Prometheus workspaces.
+* Resource policies enable cross-account access and fine-grained permissions for Prometheus workspaces.