import { ethers, InterfaceAbi } from 'ethers';
import { AstrixSDKConfig, ErrorType, CacheOptions } from '../types/core';
/**
 * Base class for all SDK modules with caching support
 */
export declare abstract class BaseModule {
    protected provider: ethers.JsonRpcProvider;
    protected signer: ethers.Signer | null;
    protected config: AstrixSDKConfig;
    private cache;
    private blockListener;
    private currentBlockNumber;
    private readonly DEFAULT_CACHE_TIME;
    /**
     * Create a new module instance
     * @param provider Provider for read operations
     * @param config SDK configuration
     */
    constructor(provider: ethers.JsonRpcProvider, config: AstrixSDKConfig);
    /**
     * Sets up block monitoring to invalidate cache based on new blocks
     */
    private setupBlockMonitoring;
    /**
     * Invalidates cache entries that are bound to specific blocks
     */
    private invalidateBlockBasedCache;
    /**
     * Clean up block subscription
     */
    private cleanupBlockSubscription;
    /**
     * Set the signer for write operations
     * @param signer Ethers signer object
     */
    setSigner(signer: ethers.Signer): void;
    /**
     * Check if a signer is connected
     */
    protected requireSigner(): ethers.Signer;
    /**
     * Get a contract instance
     * @param address Contract address
     * @param abi Contract ABI
     * @param useSigner Whether to use the signer or provider
     */
    protected getContract<T extends ethers.BaseContract>(address: string, abi: InterfaceAbi, useSigner?: boolean): T;
    /**
     * Get cached data or fetch it if not available
     * @param key Cache key
     * @param fetchFn Function to fetch data if not in cache
     * @param options Cache options
     */
    protected getWithCache<T>(key: string, fetchFn: () => Promise<T>, options?: CacheOptions): Promise<T>;
    /**
     * Determine if cached data should be used
     */
    private shouldUseCache;
    /**
     * Build a standardized cache key
     */
    private buildCacheKey;
    /**
     * Invalidate a specific cache entry
     * @param key Cache key to invalidate
     */
    protected invalidateCache(key: string): void;
    /**
     * Invalidate cache entries that match a pattern
     * @param pattern Pattern to match cache keys against
     */
    protected invalidateCacheByPattern(pattern: string): void;
    /**
     * Clear all cached data
     */
    protected clearCache(): void;
    /**
     * Handle errors by wrapping them in AstrixSDKError
     * @param error Original error
     * @param message Error message
     * @param type Error type
     */
    protected handleError(error: unknown, message?: string, type?: ErrorType): never;
    /**
     * Log a message if verbose mode is enabled
     * @param message Message to log
     * @param data Optional data to log
     */
    protected log(_message: string, _data?: Record<string, unknown> | string | number): void;
    /**
     * Dispose of resources and subscriptions
     */
    dispose(): void;
}