import { z } from 'zod';
export declare const SharpeRatioOptionsSchema: z.ZodObject<{
    returns: z.ZodArray<z.ZodNumber>;
    riskFreeRate: z.ZodDefault<z.ZodNumber>;
    annualizationFactor: z.ZodDefault<z.ZodNumber>;
}, z.core.$strip>;
export type SharpeRatioOptions = z.infer<typeof SharpeRatioOptionsSchema>;