import { BaseProvider, type ProviderInfo } from './base.js';
import type { CompletionRequest } from '../types/messages.js';
import type { NexusResponse, NexusStream } from '../types/response.js';
import type { OpenAIProviderConfig } from '../types/config.js';
/** OpenAI's Chat Completions API, and any server compatible with it. */
export declare class OpenAIProvider extends BaseProvider {
    /** Provider name and locality. */
    readonly info: ProviderInfo;
    private client?;
    private config;
    constructor(config: OpenAIProviderConfig);
    private getClient;
    private formatMessages;
    /** Runs one completion. */
    complete(request: CompletionRequest): Promise<NexusResponse>;
    /** Streams one completion. */
    stream(request: CompletionRequest): NexusStream;
    private createChatParams;
    /**
     * Whether to ask for usage totals on the final streamed chunk.
     *
     * Enabled for OpenAI and Azure by default, where `stream_options` is part of the API. Other
     * OpenAI-compatible servers vary, so they opt in through `streamUsage` rather than risking a
     * rejected request.
     */
    protected includeStreamUsage(): boolean;
    private mapFinishReason;
    private completeResponses;
    private streamResponses;
    private createResponsesParams;
    private requiresResponsesApi;
    private formatResponsesInput;
    private formatResponsesTools;
    private extractChatToolCalls;
    private extractResponsesText;
    private extractResponsesToolCalls;
    private isResponseFunctionCall;
    private mapResponsesFinishReason;
    private createMeta;
    private requestOptions;
    private withProviderModel;
    private stripConfiguredPrefix;
    private flushToolCalls;
}