/**
 * @typedef {Uint8Array} Scalar A scalar type, which wraps
 * raw byte representation of halo2curves::bn256::Fr.
 * It also exposes a method to convert unsigned BigInt to scalar.
 */
import { Address } from "viem";
export declare const r = 21888242871839275222246405745257275088548364400416034343698204186575808495617n;
export declare class Scalar {
    bytes: Uint8Array;
    /**
     * @param bytes the bytes of the scalar in little-endian form
     * @throws if the bytes are not 32 bytes long
     * use only when wrapping WASM-produced scalar output
     */
    constructor(bytes: Uint8Array);
    /**
     * Converts a bigint to a scalar.
     * A value is convertible to scalar type if it is a non-negative integer less than r.
     *
     * @param value the value to convert
     * @returns the value as a scalar
     * @throws if the value is not convertible to scalar
     */
    static fromBigint(value: bigint): Scalar;
    /**
     * Converts an ethereum address to a scalar.
     * @param address ethereum address
     * @returns scalar representation of the address
     * @throws if the address is incorrect (not 20 bytes hex string)
     */
    static fromAddress(address: Address): Scalar;
}
/**
 * Checks if a value is convertible to scalar type.
 * A value is convertible to scalar type if it is a non-negative integer less than r.
 *
 * @param value the value to check
 * @returns if the value is convertible to scalar type
 */
export declare function isBigintScalar(value: bigint): boolean;
export declare function scalarToBigint(scalar: Scalar): bigint;
export declare function scalarsEqual(a: Scalar, b: Scalar): boolean;