import { ContractStorageRead, ContractStorageUpdateRequest } from '@aztec/circuits.js';
import { AztecAddress } from '@aztec/foundation/aztec-address';
import { Fr } from '@aztec/foundation/fields';
import { PublicStateDB } from './db.js';
/**
 * Implements read/write operations on a contract public storage, collecting
 * all read and update operations, and collapsing them into a single
 * read or update per slot.
 */
export declare class ContractStorageActionsCollector {
    private db;
    private address;
    private readonly contractStorageReads;
    private readonly contractStorageUpdateRequests;
    constructor(db: PublicStateDB, address: AztecAddress);
    /**
     * Returns the current value of a slot according to the latest update request for it,
     * falling back to the public db. Collects the operation in storage reads,
     * as long as there is no existing update request.
     * @param storageSlot - Slot to check.
     * @param sideEffectCounter - Side effect counter associated with this storage action.
     * @returns The current value as affected by all update requests so far.
     */
    read(storageSlot: Fr, sideEffectCounter: number): Promise<Fr>;
    /**
     * Sets a new value for a slot in the internal update requests cache,
     * clearing any previous storage read or update operation for the same slot.
     * @param storageSlot - Slot to write to.
     * @param newValue - Value to write to it.
     * @param sideEffectCounter - Side effect counter associated with this storage action.
     */
    write(storageSlot: Fr, newValue: Fr, sideEffectCounter: number): Promise<void>;
    /**
     * Returns all storage reads and update requests performed.
     * @returns All storage read and update requests.
     */
    collect(): [ContractStorageRead[], ContractStorageUpdateRequest[]];
}
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