/**
 * @sharpee/platform-browser/channels — TextContent → DOM helper.
 *
 * Owner context: browser default channel renderers. Projects a
 * `TextContent[]` array (the shape stdlib's `mainChannel` emits per
 * append entry) into a flat `<span>`-based fragment that preserves
 * decorations as nested elements.
 *
 * Per ADR-174, every decoration on the wire is `IDecoration { className,
 * content }` — the bracket parser already resolved platform-vocabulary
 * names to their `sharpee-`-prefixed final form. The renderer's job is
 * to wrap the content in a `<span>` carrying that class verbatim;
 * styling is supplied by the platform's prose CSS bundle (see Phase 1
 * sub-phase 1.7). Author classes (no `sharpee-` prefix) flow through
 * unchanged so stories own their own CSS.
 */
import type { TextContent } from '@sharpee/text-blocks';
/**
 * Render a `TextContent[]` array into a `DocumentFragment`. String
 * nodes become text nodes; decoration nodes become `<span>` elements
 * whose `class` is the final, fully-resolved CSS class name from the
 * decoration node.
 */
export declare function renderTextContent(doc: Document, content: ReadonlyArray<TextContent>): DocumentFragment;
/**
 * Project a `TextContent[]` array to a plain string (decorations
 * stripped). Used by status / prompt renderers that don't preserve
 * decorations.
 */
export declare function flattenTextContent(content: ReadonlyArray<TextContent>): string;
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