I have a following terraform code

import logging

from checkov.common.models.enums import CheckResult
from checkov.terraform.checks.resource.base_resource_value_check import 
    BaseResourceValueCheck


def get_resource_message(conf):
    dataset_id = conf.get("dataset_id")
    return f"Dataset '{dataset_id}' is missing 'cost_center' label"


class BigQueryDatasetCostCenterCheck(BaseResourceValueCheck):
    def __init__(self):
        name = "Ensure BigQuery datasets have mandatory cost_center labels"
        id = "CKV_CUSTOM_1"
        supported_resources = ["google_bigquery_dataset"]
        categories = ["Data"]
        logging.info("hello")
        super().__init__(
            name=name,
            id=id,
            categories=categories,
            supported_resources=supported_resources,
        )

    def get_inspected_key(self):
        return "labels"

    def get_expected_value(self):
        return {"cost_center": "Present"}

    def scan_resource_conf(self, conf):
        labels = conf.get(self.get_inspected_key(), {})
        if "cost_center" not in labels:
            return CheckResult.FAILED #, get_resource_message(conf)
        return CheckResult.PASSED#, "gadfdfd"


check = BigQueryDatasetCostCenterCheck()

I have my init.py file as well.

import glob
from os.path import basename, dirname, isfile, join

modules = glob.glob(join(dirname(__file__), "*.py"))
__all__ = [
    basename(f)[:-3] for f in modules if isfile(f) and not f.endswith("__init__.py")
]

however when I run this on my terraform code or tfplan.json. it doesn’t scan for this custom policy.

 checkov --skip-check CKV_GCP_81,CKV_GCP_15 --external-checks-dir=./python                           ─╯

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