import type { Address } from 'abitype';
import type { Client } from '../../clients/createClient.js';
import type { Transport } from '../../clients/transports/createTransport.js';
import type { ErrorType } from '../../errors/utils.js';
import type { BlockTag } from '../../types/block.js';
import type { Chain } from '../../types/chain.js';
import type { Hex } from '../../types/misc.js';
import type { RequestErrorType } from '../../utils/buildRequest.js';
import { type NumberToHexErrorType } from '../../utils/encoding/toHex.js';
export type GetStorageAtParameters = {
    address: Address;
    slot: Hex;
} & ({
    blockNumber?: undefined;
    blockTag?: BlockTag | undefined;
} | {
    blockNumber?: bigint | undefined;
    blockTag?: undefined;
});
export type GetStorageAtReturnType = Hex | undefined;
export type GetStorageAtErrorType = NumberToHexErrorType | RequestErrorType | ErrorType;
/**
 * Returns the value from a storage slot at a given address.
 *
 * - Docs: https://viem.sh/docs/contract/getStorageAt
 * - JSON-RPC Methods: [`eth_getStorageAt`](https://ethereum.org/en/developers/docs/apis/json-rpc/#eth_getstorageat)
 *
 * @param client - Client to use
 * @param parameters - {@link GetStorageAtParameters}
 * @returns The value of the storage slot. {@link GetStorageAtReturnType}
 *
 * @example
 * import { createPublicClient, http } from 'viem'
 * import { mainnet } from 'viem/chains'
 * import { getStorageAt } from 'viem/contract'
 *
 * const client = createPublicClient({
 *   chain: mainnet,
 *   transport: http(),
 * })
 * const code = await getStorageAt(client, {
 *   address: '0xFBA3912Ca04dd458c843e2EE08967fC04f3579c2',
 *   slot: toHex(0),
 * })
 */
export declare function getStorageAt<chain extends Chain | undefined>(client: Client<Transport, chain>, { address, blockNumber, blockTag, slot }: GetStorageAtParameters): Promise<GetStorageAtReturnType>;
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