import type { AnyCell, MapCell, SheetProxy } from "@okcontract/cells";
import type { ABI, ABIExtra, CacheQuery } from "@okcontract/coredata";
import { Rational } from "@okcontract/lambdascript";
import { type Address, type ChainAddress, type ChainType, type LocalRPCSubscriber, type Network } from "@okcontract/multichain";
import type { LocalSubscriber } from "@scv/cache";
import type { OKCore } from "./coreExecution";
import type { TokenQueryOrAddress } from "./types";
export declare const ERC20 = "20";
export declare const balance_of = "balanceOf";
export declare const approve_method = "approve";
export declare const approve_method_signature = "function approve(address _spender, uint256 _value) public returns (bool success)";
export declare const erc20: string[];
export declare const erc20AbiEVM: import("abitype").Abi;
export declare const erc20AbiStarknet: {
    name: string;
    type: string;
    items: {
        name: string;
        type: string;
        inputs: {
            name: string;
            type: string;
        }[];
        outputs: {
            type: string;
        }[];
        state_mutability: string;
    }[];
}[];
/**
 * generated abix from any contract that is erc20.
 * @param chain
 * @param addr
 * @param tcd
 * @returns
 * @todo move is_erc20 check here
 * @todo extend to other interfaces (erc721, etc.)
 */
export declare const abix_erc20: (abi: ABI) => ABIExtra | null;
export type TokenContractData = {
    decimals: AnyCell<number>;
    symbol: AnyCell<string>;
};
export declare const valid_timestamp: (ts: number) => boolean;
/**
 * get_allowance retrieves an allowance using the contract cache (shared with balance).
 * @param ch
 * @param addr
 * @param spender
 * @returns
 */
export declare const getAllowanceForWallet: <N extends Network>(core: OKCore, local: LocalRPCSubscriber, wallet: AnyCell<Address<N> | "none">, addr: AnyCell<ChainAddress>, spender: AnyCell<Address<N>>) => AnyCell<bigint | null>;
/**
 * formatBig is an alternative to formatUnits from ethers.
 * @param v
 * @param keep significant digits to keep
 * @see https://docs.ethers.io/v5/api/utils/display-logic/
 * @todo duplicate in uic
 */
export declare const formatBig: (v: bigint | number | string | null, dec: number | bigint, keep?: number) => any;
/**
 * formatAmount returns a string representation of an amount for a given token.
 * @param v value
 * @param tok token (as hex address or "tok:" query)
 * @returns
 * @todo maybe Lambdascript evaluation should automatically enrich
 *       token queries, addresses, etc. to OKToken objects which
 *       stdlib functions such as `formatAmount` could use directly
 */
export declare const formatAmount: (core: OKCore, proxy: SheetProxy, rpc: LocalRPCSubscriber, local: LocalSubscriber<CacheQuery>, v: AnyCell<number | string | bigint | Rational>, tok: AnyCell<TokenQueryOrAddress>, chain: AnyCell<ChainType>, showSymbol?: AnyCell<boolean>) => MapCell<string, false>;
/**
 * raw_balance
 * @param ch
 * @param tok (use nativeAddr for native chain balances)
 * @returns
 */
export declare const raw_balance: (core: OKCore, proxy: SheetProxy, rpc: LocalRPCSubscriber, local: LocalSubscriber<CacheQuery>, wallet: AnyCell<Address<Network>>, ch: AnyCell<ChainType>, tok: AnyCell<TokenQueryOrAddress>) => AnyCell<[Rational, Rational, string]>;
/**
 * formatBalance returns the formatted balance for the current user.
 * @param ch chain
 * @param addr token address
 * @returns
 */
export declare const formatBalance: (core: OKCore, proxy: SheetProxy, rpc: LocalRPCSubscriber, local: LocalSubscriber<CacheQuery>, wallet: AnyCell<Address<Network>>, ch: AnyCell<ChainType>, tok: AnyCell<TokenQueryOrAddress>, show_symbol?: boolean) => MapCell<string, false>;
export declare const getDecimals: <N extends Network>(local: LocalSubscriber<CacheQuery>, core: OKCore, proxy: SheetProxy, rpc: LocalRPCSubscriber, addr: AnyCell<ChainAddress<N>>) => MapCell<Rational, false>;
export declare const getBalance: <N extends Network>(core: OKCore, proxy: SheetProxy, rpc: LocalRPCSubscriber, addr: AnyCell<ChainAddress<N>>, owner: AnyCell<Address<N> | null>) => MapCell<bigint | null, false>;
export declare const getSymbol: <N extends Network>(local: LocalSubscriber<CacheQuery>, core: OKCore, proxy: SheetProxy, rpc: LocalRPCSubscriber, addr: AnyCell<ChainAddress<N>>, _where?: string) => MapCell<string, false>;
export declare const getName: <N extends Network>(local: LocalSubscriber<CacheQuery>, core: OKCore, proxy: SheetProxy, rpc: LocalRPCSubscriber, addr: AnyCell<ChainAddress<N>>) => MapCell<string, false>;