/**
 * @sharpee/platform-browser/channels/prompt — `prompt` channel renderer.
 *
 * Owner context: browser default. Implements ADR-165 §8 prompt-channel
 * behavior: set the input slot's prompt label.
 *
 * The `prompt` channel is replace-mode text. The renderer:
 *  - Sets the input element's `placeholder` (so the prompt text shows
 *    when the field is empty), and
 *  - Updates a sibling label element if one is provided (so a "> "
 *    prompt prefix can render outside the input).
 */
import type { ChannelRenderer } from '@sharpee/channel-service';
export interface PromptChannelRendererOptions {
    /**
     * Optional sibling label element that displays the prompt text
     * outside the input field (e.g., a `<span>` rendering "> "). The
     * renderer sets its `textContent`. When omitted, only the input
     * placeholder is updated.
     */
    promptLabel?: HTMLElement | null;
}
/**
 * Construct the default browser `prompt` channel renderer.
 *
 * @param input — the `<input>` element the user types into.
 * @param opts.promptLabel — optional sibling label element.
 */
export declare function createPromptChannelRenderer(input: HTMLInputElement, opts?: PromptChannelRendererOptions): ChannelRenderer;
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