import type OpenAI from "openai";
import type { NativeChatRequestArgs } from "@use-crux/core/adapter";
import type { GenerationSettings } from "@use-crux/core";
import type { OpenAIChatRequest, OpenAIExtra } from "./types";
/**
 * The JSON Schema behavior OpenAI's structured-output (strict) mode accepts.
 *
 * OpenAI strict mode requires every property in `required`, rejects extra
 * properties, and expresses optionality with a `null` union. Core lowers the
 * authored schema against these capabilities and supplies the result to the
 * request builder.
 */
export declare const openAIStructuredCapabilities: {
    id: string;
    supportsJsonSchema: true;
    requiresAllProperties: true;
    supportsOptionalProperties: false;
    supportsNullable: true;
    supportsBooleanSchemas: false;
    supportsReferences: true;
    supportsUnions: true;
    supportsRecursiveSchemas: true;
    additionalProperties: "must-be-false";
    unsupportedKeywords: never[];
};
/** Build the OpenAI chat-completion request body from canonical Crux args. */
export declare function openAIRequest(args: NativeChatRequestArgs<OpenAIExtra, OpenAI.ChatCompletionMessageParam>): OpenAIChatRequest;
/** Add OpenAI's streaming flag to an already assembled request body. */
export declare function openAIStreamRequest(request: OpenAIChatRequest): OpenAIChatRequest;
/** Map canonical generation settings onto OpenAI chat-completion fields. */
export declare function openAISettings(settings: GenerationSettings): Record<string, unknown>;
/** Narrow OpenAI request body for non-streaming create/parse SDK calls. */
export declare function asOpenAINonStreamingParams(request: OpenAIChatRequest): OpenAI.ChatCompletionCreateParamsNonStreaming;
/** Narrow OpenAI request body for streaming create SDK calls. */
export declare function asOpenAIStreamingParams(request: OpenAIChatRequest): OpenAI.ChatCompletionCreateParamsStreaming;