/**
 * Cross-environment executor adapter for AWS Bedrock's native Converse API.
 *
 * @module @nhtio/adk/batteries/llm/bedrock_converse/adapter
 *
 * @remarks
 * Targets `POST {baseURL}/model/{modelId}/converse` (and `/converse-stream` when `stream` is set)
 * over plain HTTPS with a Bedrock API key (`Authorization: Bearer ABSK…`). Deliberately NO AWS SDK
 * and no SigV4 signer: the battery must stay cross-environment and dependency-light, and a bearer
 * key removes the only reason to pull in a signer.
 *
 * Why a native battery rather than pointing `openai_chat_completions` at a Converse-backed gateway:
 * Converse is a content-BLOCK protocol with strict role alternation, a required `toolConfig`
 * whenever tool blocks appear, and tool results carried on `user` turns. A gateway must repair all
 * of that on your behalf — most notably by MERGING consecutive same-role turns — and that repair is
 * invisible in the response. For ordinary use it is fine; for anything that needs to know what the
 * VENDOR received it is fatal, because a gateway's fix is indistinguishable from vendor tolerance.
 * See the validation battery's "Which API surface a rule applies to" guide, and
 * {@link BedrockConverseAdapterOptions.alternationPolicy} for the `'reject'` escape hatch that lets
 * Converse's own error surface.
 *
 * Options layer as in every other battery: constructor baseline → `executor()` overrides →
 * per-iteration `ctx.stash.bedrockConverse`, re-validated each iteration.
 */
import type { DispatchExecutorFn } from "../../../types";
import type { BedrockConverseAdapterOptions } from "./types";
/**
 * Native Bedrock Converse executor adapter.
 *
 * @example
 * ```ts
 * const adapter = new BedrockConverseAdapter({
 *   model: 'us.amazon.nova-2-lite-v1:0',
 *   apiKey: process.env.AWS_BEARER_TOKEN_BEDROCK,
 *   region: 'us-east-1',
 * })
 * const runner = new TurnRunner({ executorCallback: adapter.executor(), ... })
 * ```
 */
export declare class BedrockConverseAdapter {
    #private;
    /** Per-iteration override key on `ctx.stash`. */
    static readonly STASH_KEY: "bedrockConverse";
    /**
     * @param options - Constructor-baseline options, re-validated each iteration after overrides merge.
     * @throws {@link E_INVALID_BEDROCK_CONVERSE_OPTIONS} when `options` is invalid.
     */
    constructor(options: unknown);
    /** Narrowing guard for cross-realm instances. */
    static isBedrockConverseAdapter(value: unknown): value is BedrockConverseAdapter;
    /**
     * Build a {@link DispatchExecutorFn} bound to the baseline plus optional executor-scope overrides.
     *
     * @param overrides - Higher precedence than the baseline, lower than `ctx.stash`.
     */
    executor(overrides?: Partial<BedrockConverseAdapterOptions>): DispatchExecutorFn;
}