import { type MarkdownStreamCache } from "../../ui-core/rendering/streaming-markdown.js";
import type { AssistantItem } from "../../ui-core/state/transcript-types.js";
import { type BlockContext } from "./block-context.js";
export interface AssistantLinesResult {
    readonly lines: string[];
    readonly cache: MarkdownStreamCache;
}
/** Gutter columns consumed by `◆ ` plus the reserved right column. */
export declare const ASSISTANT_CHROME_COLS = 2;
export declare function buildAssistantLines(ctx: BlockContext, item: AssistantItem): AssistantLinesResult;