export type KeyBinding<Action> = {
    keys: string[];
    help: string;
    hint?: string;
    when?: () => boolean;
    run: () => Action | void;
};
export type CursorMoves = {
    by: (delta: number) => void;
    toTop: () => void;
    toBottom: () => void;
    /** Rows in one page, read when the key is pressed. */
    page: () => number;
    /** Rows in half a page, at least one. */
    halfPage: () => number;
};
export declare function findBinding<Action>(bindings: KeyBinding<Action>[], key: string): KeyBinding<Action> | undefined;
export declare function runKey<Action>(bindings: KeyBinding<Action>[], key: string, fallback: Action): Action;
export declare function helpFrom<Action>(bindings: KeyBinding<Action>[]): string[];
export declare function hintsFrom<Action>(bindings: KeyBinding<Action>[]): string;
export declare function duplicateKeys<Action>(bindings: KeyBinding<Action>[]): string[];
/** The movement keys every Agency TUI shares. A full page on Ctrl+F and
 *  the Page keys, half a page on Ctrl+D and Ctrl+U — the tree view's
 *  behavior today (`treeView.ts:216-221`), now the rule everywhere. */
export declare function cursorBindings<Action>(moves: CursorMoves): KeyBinding<Action>[];