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 { RequestErrorType } from '../../utils/buildRequest.js';
import { type NumberToHexErrorType } from '../../utils/encoding/toHex.js';
export type GetBalanceParameters = {
    /** The address of the account. */
    address: Address;
} & ({
    /** The balance of the account at a block number. */
    blockNumber?: bigint | undefined;
    blockTag?: undefined;
} | {
    blockNumber?: undefined;
    /** The balance of the account at a block tag. */
    blockTag?: BlockTag | undefined;
});
export type GetBalanceReturnType = bigint;
export type GetBalanceErrorType = NumberToHexErrorType | RequestErrorType | ErrorType;
/**
 * Returns the balance of an address in wei.
 *
 * - Docs: https://viem.sh/docs/actions/public/getBalance
 * - JSON-RPC Methods: [`eth_getBalance`](https://ethereum.org/en/developers/docs/apis/json-rpc/#eth_getbalance)
 *
 * You can convert the balance to ether units with [`formatEther`](https://viem.sh/docs/utilities/formatEther).
 *
 * ```ts
 * const balance = await getBalance(client, {
 *   address: '0xA0Cf798816D4b9b9866b5330EEa46a18382f251e',
 *   blockTag: 'safe'
 * })
 * const balanceAsEther = formatEther(balance)
 * // "6.942"
 * ```
 *
 * @param client - Client to use
 * @param parameters - {@link GetBalanceParameters}
 * @returns The balance of the address in wei. {@link GetBalanceReturnType}
 *
 * @example
 * import { createPublicClient, http } from 'viem'
 * import { mainnet } from 'viem/chains'
 * import { getBalance } from 'viem/public'
 *
 * const client = createPublicClient({
 *   chain: mainnet,
 *   transport: http(),
 * })
 * const balance = await getBalance(client, {
 *   address: '0xA0Cf798816D4b9b9866b5330EEa46a18382f251e',
 * })
 * // 10000000000000000000000n (wei)
 */
export declare function getBalance<chain extends Chain | undefined>(client: Client<Transport, chain>, { address, blockNumber, blockTag, }: GetBalanceParameters): Promise<GetBalanceReturnType>;
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