async def METHOD_NAME(
    mock_sts_client,
    mock_iam_client,  # noqa: F811 # intentional for mocks
    mock_fs,
    mock_execution_message,
    mock_aws_account,
):
    _, templates_base_dir = mock_fs
    os.makedirs(f"{templates_base_dir}/.iambic/iam/user/")
    user_resource_path = (
        f"{templates_base_dir}/.iambic/iam/user/example_username_tags.json"
    )
    await set_user_resource_tags(EXAMPLE_USERNAME, user_resource_path, mock_aws_account)
    with open(user_resource_path, "r") as f:
        contents = json.load(f)
        assert contents == {
            "Tags": [{"Key": EXAMPLE_TAG_KEY, "Value": EXAMPLE_TAG_VALUE}]
        }