export declare enum HeliusPriorityLevel {
    MIN = "min",// 25th percentile
    LOW = "low",// 25th percentile
    MEDIUM = "medium",// 50th percentile
    HIGH = "high",// 75th percentile
    VERY_HIGH = "veryHigh",// 95th percentile
    UNSAFE_MAX = "unsafeMax"
}
export type HeliusPriorityFeeLevels = {
    [key in HeliusPriorityLevel]: number;
};
export type HeliusPriorityFeeResponse = {
    jsonrpc: string;
    result: {
        priorityFeeEstimate?: number;
        priorityFeeLevels?: HeliusPriorityFeeLevels;
    };
    id: string;
};
export declare function fetchHeliusPriorityFee(heliusRpcUrl: string, lookbackDistance: number, addresses: string[]): Promise<HeliusPriorityFeeResponse>;