import { ethers } from "ethers";
import { LongShortPairEthers } from "@uma/contracts-node";
import { AssetConfigLSP, AssetConfigEMP, IPairData, SynthsAssetsConfig, ISynthsData } from "../types/assets.t";
/**
 * @notice Helper function to prepare the lsp state multicall.
 * @param contract The lsp contract instance.
 * @returns A promise with the lsp state.
 */
export declare function prepareLSPStateCall(contract: LongShortPairEthers): Promise<[ethers.BigNumber, string, string, string, string, string, ethers.BigNumber, string]>;
/**
 * @notice Helper function to get the decimals of a erc20 token.
 * @param address Address of the erc20 contract.
 * @param ethersProvider Ethers provider instance.
 * @returns The erc20 token decimals.
 */
export declare function getTokenDecimals(address: string, ethersProvider: ethers.providers.Provider): Promise<number | undefined>;
/**
 * @notice Helper function to get the current DEX token price.
 * @param poolLocation Location string of the DEX pool (e.g. "uni").
 * @param poolAddress Address of the DEX pool.
 * @param tokenAddress Address of the token.
 * @param blockNumber Blocn number at which you want to get the price.
 * @param network? Chain id to decide which subgraph endpoint to use, defaults to mainnet.
 * @returns The DEX token price in WEI.
 */
export declare function getDexTokenPriceAtBlock(poolLocation: string, poolAddress: string, collateralSymbol: string, blockNumber: number, network?: string): Promise<{
    value: number;
    tokenid: string;
    tokenId?: undefined;
} | {
    value: number;
    tokenId: string;
    tokenid?: undefined;
}>;
/**
 * @notice Helper function to get relevant synth market data.
 * @param synthId The synth identifier.
 * @param networkId The network / chain id of the synth deployment.
 * @param network? Chain id to decide which subgraph endpoint to use, defaults to mainnet.
 * @param polyscanApiKey? Api key for polyscan.
 * @param userConfig? A user assets userConfig.
 * @returns An object with the synth market data.
 */
export declare function getSynthData(poolLocation: string, poolAddress: string, collateralSymbol: string, network?: string, polyscanApiKey?: string, userConfig?: SynthsAssetsConfig): Promise<ISynthsData | undefined>;
/**
 * @notice Helper function to get the data for the most recent synths.
 * @dev Can be used on the front-end to display the most recent synths.
 * @param networkId The network / chain id of the synth deployment.
 * @param userConfig? A user assets userConfig.
 * @param polyscanApiKey? Api key for polyscan.
 * @returns The most recent synth market data.
 */
export declare function getRecentSynthData(networkId: number, userConfig?: SynthsAssetsConfig, polyscanApiKey?: string): Promise<ISynthsData[]>;
/**
 * @notice Helper function to get the total liquidity and volume of all synths in the last 24h.
 * @param networks Array of networks that the user wants to query.
 * @param userConfig? A user assets userConfig.
 * @param polyscanApiKey? Api key for polyscan.
 * @returns The total synths market data.
 */
export declare function getTotalMarketData(networks: Array<number>, userConfig?: SynthsAssetsConfig, polyscanApiKey?: string): Promise<{
    totalLiquidity: number;
    total24hVolume: number;
    totalTVL: undefined;
    totalSynthCount: number;
}>;
/**
 * @notice Helper function to get data from `assets.json` according to the synth id.
 * @param synthId The synth identifier.
 * @param networkId The network / chain id of the synth deployment.
 * @param userConfig? A user assets userConfig.
 * @returns The synth info from the `assets.json`.
 */
export declare function getInfoByIdentifier(synthId: string, network: number, userConfig?: SynthsAssetsConfig): AssetConfigEMP | AssetConfigLSP | undefined;
/**
 * @notice Helper function to get the rewards by pool address.
 * @dev Should be removed after api accepts a pool address instead of an id.
 * @param poolAddress The DEX pool address.
 * @param userConfig? A user assets userConfig.
 * @returns The rewards for the given pool.
 */
export declare function getYamRewardsByPoolAddress(poolAddress: string, userConfig?: SynthsAssetsConfig): Promise<string | undefined>;
/**
 * @notice Helper function to get pool data.
 * @dev Since the subgraph only indexes data if something has changed we fill the data manually.
 * @param poolAddress The pool address you want to get the data from.
 * @param tokenAddress The token of which you want to get the price.
 * @param poolLocation The pool location to help choose the right subgraph endpoint.
 * @param network? Chain id to decide which subgraph endpoint to use, defaults to mainnet.
 * @returns An array of token market data.
 */
export declare function getPoolChartData(poolLocation: string, poolAddress: string, tokenAddress: string, network?: string): Promise<IPairData[]>;
/**
 * @notice Helper function to round a number to a certain number of decimals.
 * @param number The number to round.
 * @param decimals The number of decimals to round to.
 * @returns The rounded number.
 */
export declare function roundNumber(number: number, decimals: number): number;
/**
 * @notice Calculates the change between 2 numbers in percentage.
 * @param oldNumber The initial value.
 * @param newNumber The value that changed.
 */
export declare function getPercentageChange(oldNumber: number, newNumber: number): number;
/**
 * @notice Converts a given timestamp into a block number.
 * @param timestamp The timestamp that should be converted.
 * @param polyscanApiKey? Api key for polyscan.
 * @returns A block number.
 */
export declare function timestampToBlock(timestamp: number, network?: string, polyscanApiKey?: string): Promise<number>;