provider support for custom rules?

[owitplat]

Hello,

We are seeking to configure conformity custom rules via terraform.

We have a working terraform/conformity environment. We can create other resource types (eg communication channels)

We're following the AWS example for a custom rule here:
https://github.com/trendmicro/terraform-provider-conformity/blob/5c1d891b19ff88f1f485f7dcfd46c6c096bbc2fb/example/custom_rule/main.tf

Running terraform plan results in the following error:

│ Error: Invalid resource type
│
│ on custom_rules.tf line 1, in resource "conformity_custom_rule" "example":
│ 1: resource "conformity_custom_rule" "example"{
│
│ The provider trendmicro/conformity does not support resource type "conformity_custom_rule".

Is this expected? What would you suggest we do to troubleshoot?

thanks.