def METHOD_NAME(private_key: str, *reports: dict):
    """Decrypt all issue tracker credentials in the reports."""
    for report in reports:
        for secret_attribute in ("password", "private_token"):
            if secret_attribute in report.get("issue_tracker", {}).get("parameters", {}):
                credential = decrypt_credential(private_key, report["issue_tracker"]["parameters"][secret_attribute])
                report["issue_tracker"]["parameters"][secret_attribute] = credential