import { Prover } from './type';
import { Groth16Proof } from 'snarkjs';
import { BaseProof } from './BaseProof';
/**
 * A class representing a [signup proof](https://developer.unirep.io/docs/circuits-api/classes/src.SignupProof). Each of the following properties are public signals for the proof.
 */
export declare class SignupProof extends BaseProof {
    /**
     * The index of the data in the public signals
     */
    readonly idx: {
        identityCommitment: number;
        stateTreeLeaf: number;
        control: number;
    };
    /**
     * The [identity commitment](https://semaphore.pse.dev/docs/glossary#identity-commitment) for the user signing up.
     */
    identityCommitment: bigint;
    /**
     * The new state tree leaf for the user. This leaf will contain values for [data](https://developer.unirep.io/docs/protocol/data.md).
     */
    stateTreeLeaf: bigint;
    /**
     * The control field used for the proof. This field contains many signals binary encoded into a single 253 bit value. This value is automatically decoded into the other properties on this class.

     */
    control: bigint;
    /**
     * The attester id for the proof.
     */
    attesterId: bigint;
    /**
     * The epoch the proof was made within.
     */
    epoch: bigint;
    /**
     * The chain id for the proof.
     */
    chainId: bigint;
    /**
     * @param publicSignals The public signals of the user sign up proof that can be verified by the prover
     * @param proof The proof that can be verified by the prover
     * @param prover The prover that can verify the public signals and the proof
     * @example
     * ```ts
     * import { SignupProof } from '@unirep/circuits'
     * const data = new SignupProof(publicSignals, proof)
     * ```
     */
    constructor(publicSignals: (bigint | string)[], proof: Groth16Proof, prover?: Prover);
    /**
     * Pack several variables into one `bigint` variable.
     * @param config The variables that will be packed.
     * @returns The control
     * @example
     * ```ts
     * SignupProof.buildControl({
     *  epoch,
     *  attesterId,
     *  chainId
     * })
     * ```
     */
    static buildControl({ attesterId, epoch, chainId }: any): bigint;
}