import type { LLMClient } from '../types/index.js';
export declare class AnthropicClient implements LLMClient {
    private client;
    private apiKey;
    private model;
    private totalInputTokens;
    private totalOutputTokens;
    constructor(apiKey: string, model: string);
    isAvailable(): boolean;
    setApiKey(key: string): Promise<boolean>;
    extractJSON<T>(systemPrompt: string, userContent: string): Promise<T | null>;
    getUsage(): {
        inputTokens: number;
        outputTokens: number;
    };
    getModel(): string;
}
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