/**
 * Encode a plugin instance into an `UpdateProviderCmd` payload for a live hot-swap.
 *
 * @internal
 */
/** Component kinds a live hot-swap can target. */
export type SwapKind = 'stt' | 'llm' | 'tts' | 'vad' | 'turn_detector' | 'realtime';
/** `(provider, params)` payload for an `UpdateProviderCmd`. */
export type SwapSpec = [string, Record<string, string>];
/**
 * Map a plugin instance to an `UpdateProviderCmd` payload for a live hot-swap.
 *
 * Returns `['', {}]`-shaped results when the plugin doesn't declare enough to
 * determine a provider (the caller warns and skips); throws only when `kind`
 * itself is not a supported swap target.
 *
 * @param kind - The component kind being swapped.
 * @param comp - The new plugin instance to encode.
 * @returns A `[provider, params]` tuple; `params` values are always strings.
 */
export declare function extractSwapSpec(kind: SwapKind, comp: any): SwapSpec;