import type { LeafletContent, LeafletRenderableBlock, LeafletTextBlock, LeafletWebsiteBlock } from "./types.js";
export declare function asTextBlock(value: unknown): LeafletTextBlock | null;
/** Bookmark URL for a leaflet website block (`src` in current lexicon). */
export declare function leafletWebsiteSrc(block: LeafletWebsiteBlock): string;
/** Every renderable block in document order. */
export declare function leafletBlocks(content: unknown): Array<LeafletRenderableBlock>;
/** AT-URIs of every embedded Bluesky post block, in document order. */
export declare function leafletBskyPostUris(content: unknown): Array<string>;
/** First header plaintext inside a page embed, for chrome labels. */
export declare function leafletPageEmbedLabel(blocks: Array<LeafletRenderableBlock>): string | null;
/**
 * Plaintext lines contributed by a single leaflet block (for reading-time
 * ingest). `bskyPostText` optionally supplies narration text for embedded
 * Bluesky posts (keyed by their AT-URI) so the page reader can speak them.
 */
export declare function plaintextLinesFromBlock(block: LeafletRenderableBlock, bskyPostText?: Map<string, string>): Array<string>;
export declare function asLeafletContent(content: unknown): LeafletContent | null;
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