/**
 * Shared OpenAI chat-completions wire-format helpers used by providers that
 * talk to an OpenAI-shaped /chat/completions endpoint (openai-compatible,
 * litellm, groq, perplexity, xai, fireworks, togetherAi, cohere, cloudflare,
 * huggingFace, llamaCpp, lmStudio, deepseek, nvidiaNim, and openAI itself).
 *
 * Everything in this module is provider-agnostic: pure functions that convert
 * between NeuroLink-shaped values and the OpenAI wire format, plus the SSE
 * parser + queue primitives a streaming provider needs. Provider classes own
 * their own orchestration (executeStream + runStreamLoop) for now — that
 * extraction is a follow-up PR.
 *
 * Nothing here imports from "ai" or "@ai-sdk/*". The whole point of this
 * module is to be the native replacement for the AI SDK's OpenAI wrapper.
 */
import type { OpenAICompatBuildBodyArgs, OpenAICompatChatMessage, OpenAICompatChatRequest, OpenAICompatChatTool, OpenAICompatMessage, OpenAICompatMessageContent, OpenAICompatResponseFormat, OpenAICompatSSEResult, OpenAICompatToolChoiceWire, OpenAICompatUsage, OpenAICompatV3CallToolChoice, OpenAICompatV3CallTools, DeferredUsage, Tool } from "../types/index.js";
export declare const stripTrailingSlash: (s: string) => string;
/**
 * Build a bijective original ↔ wire tool-name map. Returns undefined when
 * every name is already wire-valid and unreserved (the common case — the
 * wire then uses original names untouched and callers skip all mapping).
 * Sanitized names that collide get a deterministic numeric suffix so the
 * map stays invertible.
 *
 * `reservedWireNames` seeds the collision set with wire names already
 * declared in the request — a mid-turn discovery refresh maps only the
 * newly hydrated subset, and without seeding a hydrated name (sanitized OR
 * wire-valid) could reuse a wire name an earlier tool already claimed,
 * making the reverse mapping ambiguous.
 */
export declare const buildWireToolNameMaps: (names: readonly string[], reservedWireNames?: ReadonlySet<string>) => {
    toWire: Map<string, string>;
    fromWire: Map<string, string>;
} | undefined;
/**
 * Estimate the input-token cost of a fully-built wire request (messages +
 * tool definitions). Used by the per-request max_tokens fit against a
 * RUNTIME-DISCOVERED context window — deliberately the same char-based
 * estimator the budget pipeline uses, so both layers agree.
 *
 * Image parts are billed at the flat IMAGE_TOKEN_ESTIMATE, never by the length
 * of their base64 data URL: a PDF rendered to 10 page images otherwise
 * stringifies to ~1.2M "tokens" and is rejected before it is ever sent.
 */
export declare const estimateWireTokens: (messages: ReadonlyArray<OpenAICompatChatMessage>, tools: OpenAICompatChatTool[] | undefined, provider?: string) => number;
export declare const safeStringify: (value: unknown) => string;
export declare const stringifyToolInput: (input: unknown) => string;
export declare const stringifyToolOutput: (output: unknown) => string;
export declare const imageDataToURL: (data: unknown, mediaType?: string) => string | undefined;
export declare const convertContentForOpenAI: (content: unknown) => string | OpenAICompatMessageContent[];
export declare const messageBuilderToOpenAI: (messages: ReadonlyArray<OpenAICompatMessage>, toolNameToWire?: Map<string, string>, replayReasoning?: boolean) => OpenAICompatChatMessage[];
export declare const buildToolsForOpenAI: (tools: Record<string, Tool>, toolNameToWire?: Map<string, string>) => OpenAICompatChatTool[] | undefined;
export declare const v3ToolsToOpenAI: (tools: OpenAICompatV3CallTools | undefined, toolNameToWire?: Map<string, string>) => OpenAICompatChatTool[] | undefined;
export declare const v3ToolChoiceToOpenAI: (choice: OpenAICompatV3CallToolChoice, toolNameToWire?: Map<string, string>) => OpenAICompatToolChoiceWire | undefined;
export declare const v3ResponseFormatToOpenAI: (rf: {
    type: "text" | "json";
    schema?: Record<string, unknown>;
    name?: string;
    description?: string;
}) => OpenAICompatResponseFormat | undefined;
export declare const mapNeuroLinkToolChoice: (choice: unknown, toolNameToWire?: Map<string, string>) => OpenAICompatToolChoiceWire | undefined;
export declare const messagesContainJsonWord: (messages: ReadonlyArray<OpenAICompatChatMessage>) => boolean;
export declare const ensureJsonWordInBody: (body: OpenAICompatChatRequest) => OpenAICompatChatRequest;
export declare const requiresMaxCompletionTokens: (modelId: string) => boolean;
export declare const buildBody: (args: OpenAICompatBuildBodyArgs) => OpenAICompatChatRequest;
export declare const parseSSEStream: (body: ReadableStream<Uint8Array>, onTextDelta: (delta: string) => void, onReasoningDelta?: (delta: string) => void) => Promise<OpenAICompatSSEResult>;
export declare const buildAPIError: (url: string, body: OpenAICompatChatRequest, res: Response) => Promise<Error>;
export declare const createDeferredAnalytics: () => {
    usagePromise: Promise<DeferredUsage>;
    finishPromise: Promise<string>;
    resolveUsage: (u: DeferredUsage) => void;
    resolveFinish: (reason: string) => void;
};
export declare const mergeUsage: (a: OpenAICompatUsage | undefined, b: OpenAICompatUsage | undefined) => OpenAICompatUsage | undefined;