import type { DecisionError, DecisionModelCard, DecisionQuestion, DecisionState, NeurolinkCredentials } from "../types/index.js";
import { SystemOneDecisionProvider } from "./systemOneDecision.js";
/**
 * The binding limit in practice: `state` plus the SINGLE LONGEST question.
 * Measured by bisection at single-character resolution — 33,002 reported
 * input tokens accepted, 33,003 not.
 */
export declare const TYPESAFE_MAX_STATE_TOKENS = 33000;
/**
 * The separate, larger ceiling on `state` plus ALL questions combined. A
 * request can carry a near-ceiling state *and* 400 extra questions (37,679
 * tokens total, verified) — questions do not compete with state for the
 * 33K budget, only for this one.
 */
export declare const TYPESAFE_MAX_REQUEST_TOKENS = 64000;
/**
 * TypeSafe Provider — the `decide` inference type only.
 *
 * Jev is a "System One" model: it takes one `state` plus a map of typed
 * questions and returns one typed answer each, evaluated in a single
 * parallel pass. The request loop, retries, auth circuit breaker and answer
 * parsing are shared with every decision provider in
 * {@link SystemOneDecisionProvider}; this class holds only what is TypeSafe's.
 *
 * Its descriptor declares `inferenceKinds: ["decide"]`, which keeps it out
 * of auto-select and the health sweep.
 *
 * Two measured properties shape the API: latency is flat in question count
 * (1 question 393ms, 400 questions 465ms) while concurrent requests queue.
 * Callers therefore batch every question into one `decide()` call.
 *
 * Two transports reach the same model. The direct one is TypeSafe's own API,
 * billed against a TypeSafe key. The gateway one is Vercel's AI Gateway
 * evaluation-model route, billed against a Vercel account — useful to a host
 * that already has one and does not want a second vendor relationship. They
 * differ on the wire (vocabulary, where the model is named, and where
 * `confidence` is reported) and not at all in `DecisionResult`.
 *
 * @see https://docs.typesafe.ai/api
 */
export declare class TypeSafeProvider extends SystemOneDecisionProvider {
    private readonly apiKey;
    private readonly baseURL;
    private readonly gatewayURL;
    /** Which wire this instance speaks. Resolved once, in the constructor. */
    private readonly transport;
    constructor(modelName?: string, sdk?: unknown, _region?: string, credentials?: NeurolinkCredentials["typesafe"]);
    protected getDefaultModel(): string;
    protected vendorLabel(): string;
    protected vendorDisplayName(): string;
    protected decisionApiKey(): string;
    protected missingKeyMessage(): string;
    /**
     * The gateway already speaks the neutral vocabulary this codebase uses, so
     * only the direct transport needs the `noul` rename.
     */
    protected encodeQuestion(question: DecisionQuestion): Record<string, unknown>;
    /**
     * The gateway names the model in a header and rejects a body that carries
     * one; the direct API requires it in the body.
     */
    protected buildDecisionBody(state: DecisionState, questions: Record<string, Record<string, unknown>>, model: string): Record<string, unknown>;
    protected parseDecisionError(status: number, payload: unknown, requestId: string | undefined): DecisionError;
    /**
     * The gateway does not omit confidence after all — it RELOCATES it, to
     * `providerMetadata.typesafe.confidence.<questionId>`, and leaves the answer
     * objects themselves without one. Preferring it over the derived peak
     * matters because the two disagree on any distribution that is not already
     * near-certain, and the router's asymmetric bars are tuned against the
     * vendor's calibrated figure, not against max(probabilities).
     */
    protected reportedConfidence(payload: unknown): Record<string, number>;
    protected readRequestId(headers: Headers): string | undefined;
    protected diagnosticContext(): Record<string, unknown>;
    /** Where a decision request goes for this instance's transport. */
    protected decisionEndpoint(): string;
    /**
     * Headers for this instance's transport.
     *
     * The gateway's three `ai-*` headers are all load-bearing:
     * `ai-gateway-protocol-version` omitted fails the request outright rather
     * than defaulting, `ai-model-id` is how the model is named at all (the body
     * carries no `model`), and `ai-evaluation-model-specification-version`
     * selects the request/response shape this provider parses.
     */
    protected decisionHeaders(): Record<string, string>;
    /** Which transport this instance resolved to. Exposed for diagnostics. */
    getDecisionTransport(): "direct" | "gateway";
    /**
     * The model aliases this key may send in `model`.
     *
     * Direct transport only: the gateway names the model in a header and
     * publishes its own catalogue, so there is no equivalent listing behind
     * this key.
     */
    listDecisionModels(): Promise<DecisionModelCard[]>;
}