import type { AKNode, AKNodeRuntimeIndexEntry, AKTree, FocusQuery, InteractiveElement } from './types.js';
interface FingerprintInput {
    tagName: string;
    role?: string | null;
    textContent?: string | null;
    ariaLabel?: string | null;
    htmlId?: string | null;
    name?: string | null;
    inputType?: string | null;
    href?: string | null;
    placeholder?: string | null;
    bounds: {
        x: number;
        y: number;
        w: number;
        h: number;
    };
}
interface FocusResult {
    tree: AKTree;
    matches: AKNode[];
    serialized: string;
}
export declare function toAscii(value: string | null | undefined): string;
export declare function fingerprintAKNode(input: FingerprintInput): string;
export declare function disambiguateFingerprint(input: FingerprintInput, parentHint: string): string;
export declare function flattenAKNodes(root: AKNode): AKNode[];
export declare function findAKNodeById(root: AKNode, nodeId: string): AKNode | null;
export declare function buildAKNodeRuntimeIndex(tree: AKTree): Map<string, AKNodeRuntimeIndexEntry>;
export declare function deriveInteractiveElementsFromAKTree(tree: AKTree): InteractiveElement[];
export declare function collectInteractiveAKNodes(tree: AKTree, includeHidden?: boolean): AKNode[];
export declare function serializeAKTree(tree: AKTree, options?: {
    root?: AKNode;
    includeInteractiveSection?: boolean;
    includeHidden?: boolean;
    maxDepth?: number;
}): string;
export declare function focusAKTree(tree: AKTree, query: FocusQuery): FocusResult;
export {};