/**
 * Subscribers: listing, filtering, exporting and adding.
 *
 * Two tools cover reading the list because Substack splits the capability in an
 * awkward place. `list_subscribers` can filter on every engagement column but
 * returns only the columns saved in the publication's Display settings, and it
 * ignores a per-request column list. So the values you filtered on often are
 * not in what comes back. `export_subscribers` is the way to actually read them.
 */
export declare const subscriberTools: import("@thenavidm/slipway").Tool<import("./kit.js").ToolContext>[];
/** A CSV reader that handles quoted fields, embedded commas and escaped quotes. */
export declare function parseCsv(input: string): string[][];