function rateimport { rate } from "https://dotland.deno.dev/x/financial@v0.1.3/src/financial.ts"; rate(nper: number,pmt: number,pv: number,fv: number,when?,guess?,tol?,maxIter?,): numberCompute the rate of interest per period Parametersnper: number Number of compounding periods pmt: number Payment pv: number Present value fv: number Future value optionalwhen = [UNSUPPORTED] When payments are due ('begin' or 'end') optionalguess = [UNSUPPORTED] Starting guess for solving the rate of interest optionaltol = [UNSUPPORTED] Required tolerance for the solution optionalmaxIter = [UNSUPPORTED] Maximum iterations in finding the solution Returnsnumberthe rate of interest per period (or NaN if it could not be computed within the number of iterations provided)