import type { GuardianResult } from "../types/guardian.js";
export interface LLMConfig {
    provider: "openai" | "anthropic";
    apiKey: string;
    model?: string;
    timeoutMs?: number;
    responseFormat?: "text" | "json";
    retryConfig?: {
        maxRetries?: number;
        initialDelayMs?: number;
        maxDelayMs?: number;
        backoffMultiplier?: number;
    };
}
export interface LLMMessage {
    role: "system" | "user" | "assistant";
    content: string;
}
export interface LLMResponse {
    content: string;
    usage?: {
        promptTokens: number;
        completionTokens: number;
        totalTokens: number;
    };
}
export declare function callLLM(config: LLMConfig, messages: LLMMessage[]): Promise<LLMResponse>;
export declare function parseGuardianJSON(content: string): GuardianResult | null;
export declare function getApiKey(provider: "openai" | "anthropic"): string | null;
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