import type { Character, Numeric, PE.Numeric<1>,  } from 'rserve-ts';

const fn_first = (x: string | string[]) => Promise<Character<1>)>;
const fn_mean = (x: number | number[]) => Promise<Numeric<1>)>;
c("const sample_one = (x: number | number[]) => Promise<Numeric<1>)>;", "const sample_one = (x: string | string[]) => Promise<Character<1>)>;")