/**
 * Gets the comment that is prepended to each AQL query of a transaction
 *
 * The comment starts with the transaction ID so the CancellationManager can find the query.
 *
 * If an operation name is given, it is added in a separate comment so slow query logs and
 * the list of running queries show which GraphQL operation a query belongs to.
 */
export declare function getAQLQueryComment(transactionID: string, operationName: string | undefined): string;