import { z } from 'zod';
export declare const CovarianceMatrixOptionsSchema: z.ZodObject<{
    returns: z.ZodArray<z.ZodArray<z.ZodNumber>>;
    labels: z.ZodOptional<z.ZodArray<z.ZodString>>;
}, z.core.$strip>;
export type CovarianceMatrixOptions = z.infer<typeof CovarianceMatrixOptionsSchema>;