method default.Environment.prototype.addFilterimport { default } from "https://deno.land/x/nunjucks@3.2.3-2/mod.js"; const { Environment } = default; addFilter(name: string,func: (...args: any[]) => any,async?: boolean,): EnvironmentParametersname: stringfunc: (...args: any[]) => anyoptionalasync: booleanReturnsEnvironment