Resource Policy for Private API Gateway

policy.js

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Principal": "*",
            "Action": "execute-api:Invoke",
            "Resource": "arn:aws:execute-api:${REGION}:${ACCOUNT_ID}:*/*",
            "Condition": {
                "StringEquals": {
                    "aws:sourceVpce": [
                        "vpce-${VPCE_ID_1}",
                        "vpce-${VPCE_ID_2}",
                        /* ... */
                    ]
                }
            }
        },
        {
            "Effect": "Allow",
            "Principal": {
                "AWS": [
                    "arn:aws:iam::${ALLOWED_ACCOUNT_ID_1}:${ALLOWED_ROLE_ID_1}",
                    "arn:aws:iam::${ALLOWED_ACCOUNT_ID_2}:${ALLOWED_ROLE_ID_2}"
                    /* ... */
                ]
            },
            "Action": "execute-api:Invoke",
            "Resource": "arn:aws:execute-api:${REGION}:${ACCOUNT_ID}:*/*",
        }
    ]
}