import { SignedFixedPoint, UnsignedFixedPoint, BtcAddress } from "../interfaces";
import { ApiPromise } from "@polkadot/api";
import type { Struct } from "@polkadot/types";
import { Network } from "bitcoinjs-lib";
import { StorageKey } from "@polkadot/types/primitive/StorageKey";
import { Codec } from "@polkadot/types/types";
/**
 * Converts endianness of a Uint8Array
 * @param bytes Uint8Array, to be converted LE<>BE
 */
export declare function reverseEndianness(bytes: Uint8Array): Uint8Array;
/**
 * Remove the `0x` hex prefix if present
 * @param str
 */
export declare function stripHexPrefix(str: string): string;
/**
 * Reverse the endianness of the given hex string
 * @dev Will remove `0x` prefix if present
 * @param hex
 */
export declare function reverseEndiannessHex(hex: string): string;
/**
 * Converts a Uint8Array to string
 * @dev Will remove `0x` prefix if present
 * @param bytes
 */
export declare function uint8ArrayToString(bytes: Uint8Array): string;
export declare function decodeFixedPointType(x: SignedFixedPoint | UnsignedFixedPoint): string;
export declare function encodeUnsignedFixedPoint(api: ApiPromise, x: string): UnsignedFixedPoint;
export declare function storageKeyToFirstInner<T extends Codec>(s: StorageKey<[T]>): T;
export interface DecodedRequest extends Struct {
    readonly btc_address: BtcAddress;
}
export interface DecodedRequestExt extends Omit<DecodedRequest, "btc_address"> {
    btc_address: string;
}
export declare function encodeParachainRequest<T extends DecodedRequest, K extends DecodedRequestExt>(req: T, network: Network): K;