import { ConfigService } from '@nestjs/config';
export interface WhatsAppCredentials {
    accessToken: string;
    phoneNumberId: string;
    businessAccountId?: string;
    verifyToken?: string;
    isFromPlatform: boolean;
    tenantId?: string;
}
export interface LLMConfig {
    apiKey: string;
    provider: string;
    model: string;
    maxTokens: number;
    temperature: number;
    baseUrl: string;
    systemPrompt?: string;
    isFromPlatform: boolean;
    tenantId?: string;
}
export declare class CredentialsProviderService {
    private readonly configService;
    private readonly logger;
    private readonly backendClient;
    private readonly cache;
    private readonly CACHE_TTL;
    constructor(configService: ConfigService);
    getWhatsAppCredentials(tenantId?: string): Promise<WhatsAppCredentials>;
    getPlatformWhatsAppCredentials(): WhatsAppCredentials;
    getLLMConfig(tenantId?: string): Promise<LLMConfig>;
    getPlatformLLMConfig(): LLMConfig;
    resolveTenantFromPhoneNumberId(phoneNumberId: string): Promise<string | null>;
    invalidateCache(tenantId: string): void;
    private getFromCache;
    private setCache;
    private getDefaultBaseUrl;
}