import type { ChannelNode } from "@copilotkit/channels-ui";
/** Teams attachment content type for an Adaptive Card. */
export declare const ADAPTIVE_CARD_CONTENT_TYPE = "application/vnd.microsoft.card.adaptive";
/** A minimally-typed Adaptive Card (1.5). Elements/actions are open bags: the
 *  schema is large and we only emit a curated subset. */
export interface AdaptiveCard {
    type: "AdaptiveCard";
    $schema: string;
    version: string;
    body: CardElement[];
    actions?: CardAction[];
}
type CardElement = Record<string, unknown>;
type CardAction = Record<string, unknown>;
/**
 * Render a cross-platform component IR tree (already expanded by `renderToIR`
 * and pre-bound by the action registry, so event props are `{ id }`) into a
 * Teams **Adaptive Card** (1.5).
 *
 * Structural nodes map to body elements (`<Header>`→bold `TextBlock`,
 * `<Section>`/`<Markdown>`→wrapped `TextBlock`, `<Fields>`→`FactSet`,
 * `<Table>`→native `Table`, `<Image>`→`Image`). Interactive nodes split by
 * Adaptive Card shape: `<Button>`→a top-level `Action.Submit` (per the V1
 * decision to use `Action.Submit`), while `<Input>`/`<Select>` become
 * `Input.Text`/`Input.ChoiceSet` in the body. Each action/input carries the
 * registry-stamped opaque id in its `data`/`id` so a later interaction can be
 * decoded back into the engine (round-trip is a follow-up; rendering is here).
 *
 * The renderer is total: unknown intrinsics are skipped. Collections clamp and
 * text truncates to {@link TEAMS_LIMITS} so the card stays within Teams' payload
 * ceiling.
 */
export declare function renderAdaptiveCard(ir: ChannelNode[]): AdaptiveCard;
/**
 * Does this IR collapse to plain text (no structural or interactive elements)?
 * Such replies are sent as a normal Teams text activity rather than wrapped in
 * an Adaptive Card. A bare `Echo: hi` shouldn't render as a card.
 */
export declare function isPlainText(ir: ChannelNode[]): boolean;
/** Plain-text projection of an IR tree (depth-first text, blocks joined). */
export declare function collectPlainText(ir: ChannelNode[]): string;
export {};
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