import { JsonRpcProvider } from '@ethersproject/providers';
import { FeeAprData, SupportedDex } from '../types';
/**
 * Get fee APR values for a vault from a V2 subgraph
 * @param vaultAddress The address of the vault
 * @param jsonProvider A JsonRpcProvider
 * @param dex The DEX identifier
 * @returns Fee APR data for different time periods or null if data not available
 */
export declare function getFeeAprs(vaultAddress: string, jsonProvider: JsonRpcProvider, dex: SupportedDex): Promise<FeeAprData | null>;