import { IExecuteFunctions } from 'n8n-workflow';
import { AccessibilityAnalysis } from '../interfaces';
import { LLMProviderType, IAnalysisOptions } from '../providers';
export declare class AiUtils {
    /**
     * Analyzes PDF content for accessibility issues using the specified LLM provider
     */
    static analyzeAccessibility(context: IExecuteFunctions, extractedText: string, documentInfo: {
        fileName: string;
        pageCount: number;
        wordCount: number;
    }, providerType: LLMProviderType, credentialType: string, options: IAnalysisOptions): Promise<AccessibilityAnalysis>;
    /**
     * Validates LLM provider credentials
     */
    static validateCredentials(context: IExecuteFunctions, providerType: LLMProviderType, credentialType: string): Promise<boolean>;
    /**
     * Gets available models for a provider type
     */
    static getProviderModels(providerType: LLMProviderType): string[];
    /**
     * Gets supported providers
     */
    static getSupportedProviders(): LLMProviderType[];
    /**
     * Estimates token count for cost calculation
     */
    static estimateTokens(text: string): number;
}