/// <reference types="node" />
import { Buffer } from "buffer";
import { NodeSDKConfig } from "./nodeSDKTypes";
/**
 *
 * @param {string} s String to shorten/extend to 4 characters
 * @returns {string} String with 4 characters (or characters + null chars)
 */
export declare function to4Chars(s: string): string;
/**
 * Converts string into 4-character bytes4
 * uses to4Chars to first convert the string into
 * 4 characters.
 * Resulting buffer can be used with smart contract to
 * identify tokens (BTC, USDC, MATIC etc.)
 * @param {string} s String to encode into bytes4
 * @returns {Buffer} 4-character bytes4.
 */
export declare function toBytes4(s: string): Buffer;
/**
 * Decodes a buffer encoded with toBytes4 into
 * a string. The string is the result of to4Chars of the
 * originally encoded string stripped from null-chars
 * @param {Buffer} b Correctly encoded bytes4 buffer using toBytes4
 * @returns {string} String decoded into to4Chars-type string without null characters
 */
export declare function fromBytes4(b: Buffer): string;
/**
 * Decodes the bytes4 encoded string received from the
 * smart contract as a hex-number in string-format
 * @param {string} s string representing a hex-number ("0x...")
 * @returns {string} x of to4Chars(x) stripped from null-chars,
 * where x was originally encoded and
 * returned by the smart contract as bytes4
 */
export declare function fromBytes4HexString(s: string): string;
/**
 *
 * @param {string} s String representing a hex-number ("0x...")
 * @param {Object} mapping List of symbol and clean symbol pairs, e.g. [{symbol: "MATIC", cleanSymbol: "MATC"}, ...]
 * @returns {string} User friendly currency symbol, e.g. "MATIC"
 */
export declare function contractSymbolToSymbol(s: string, mapping: Map<string, string>): string;
/**
 *
 * @param {string} s User friendly currency symbol, e.g. "MATIC"
 * @param {Object} mapping List of symbol and clean symbol pairs, e.g. [{symbol: "MATIC", cleanSymbol: "MATC"}, ...]
 * @returns {Buffer} Buffer that can be used with smart contract to identify tokens
 */
export declare function symbolToContractSymbol(s: string, mapping: Map<string, string>): Buffer;
/**
 * Converts symbol or symbol combination into long format
 * @param {string} s symbol, e.g., USDC-MATC-USDC, MATC, USDC, ...
 * @param {Object} mapping list of symbol and clean symbol pairs, e.g. [{symbol: "MATIC", cleanSymbol: "MATC"}, ...]
 * @returns {string} long format e.g. MATIC. if not found the element is ""
 */
export declare function symbol4BToLongSymbol(s: string, mapping: Map<string, string>): string;
export declare function combineFlags(f1: bigint, f2: bigint): bigint;
export declare function containsFlag(f1: bigint, f2: bigint): boolean;
export declare function loadConfigAbis(config: NodeSDKConfig): void;
export declare function sleepForSec(seconds: number): Promise<unknown>;