Hook for the Google Ads API.

This hook requires two connections:

• gcp_conn_id - provides service account details (like any other GCP connection)

• google_ads_conn_id - which contains information from Google Ads config.yaml file in the extras. Example of the extras:

{
    "google_ads_client": {
        "developer_token": "{{ INSERT_TOKEN }}",
        "json_key_file_path": null,
        "impersonated_email": "{{ INSERT_IMPERSONATED_EMAIL }}"
    }
}

The json_key_file_path is resolved by the hook using credentials from gcp_conn_id. https://developers.google.com/google-ads/api/docs/client-libs/python/oauth-service