import { Fr } from '@aztec/foundation/curves/bn254';
import { BufferReader } from '@aztec/foundation/serialize';
import type { FieldsOf } from '@aztec/foundation/types';
import type { UInt64 } from '../types/shared.js';
import type { ContractInstanceUpdate } from './interfaces/contract_instance_update.js';
export declare class SerializableContractInstanceUpdate {
    prevContractClassId: Fr;
    newContractClassId: Fr;
    timestampOfChange: UInt64;
    constructor(instance: ContractInstanceUpdate);
    toBuffer(): Buffer<ArrayBufferLike>;
    static fromBuffer(bufferOrReader: Buffer | BufferReader): SerializableContractInstanceUpdate;
    static random(opts?: Partial<FieldsOf<ContractInstanceUpdate>>): SerializableContractInstanceUpdate;
    static default(): SerializableContractInstanceUpdate;
}
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