import type { PublicKey } from '@metaplex-foundation/umi-public-keys';
import type { Serializer } from '@metaplex-foundation/umi-serializers';
import type { SolAmount } from './Amount';
/**
 * The size of an account header in bytes.
 * @category Accounts
 */
export declare const ACCOUNT_HEADER_SIZE = 128;
/**
 * Describes the header of an account.
 * @category Accounts
 */
export type AccountHeader = {
    executable: boolean;
    owner: PublicKey;
    lamports: SolAmount;
    rentEpoch?: bigint;
};
/**
 * Describes a raw account that has not been deserialized.
 * @category Accounts
 */
export type RpcAccount = AccountHeader & {
    publicKey: PublicKey;
    data: Uint8Array;
};
/**
 * Describes a raw account that may or may not exist.
 * @category Accounts
 */
export type MaybeRpcAccount = ({
    exists: true;
} & RpcAccount) | {
    exists: false;
    publicKey: PublicKey;
};
/**
 * Describes a deserialized account.
 * @category Accounts
 */
export type Account<T extends object> = T & {
    publicKey: PublicKey;
    header: AccountHeader;
};
/**
 * Given an account data serializer,
 * returns a deserialized account from a raw account.
 * @category Accounts
 */
export declare function deserializeAccount<From extends object, To extends From = From>(rawAccount: RpcAccount, dataSerializer: Serializer<From, To>): Account<To>;
/**
 * Ensures an account that may or may not exist actually exists.
 * @category Accounts
 */
export declare function assertAccountExists(account: MaybeRpcAccount, name?: string, solution?: string): asserts account is MaybeRpcAccount & {
    exists: true;
};