method Command.prototype.findEnvVarRe-exportimport { Command } from "https://deno.land/x/deno_books@v1.4.0/deps.ts"; findEnvVar(names: readonly string[]): Promise<{ name: string; value: string; } | undefined>Parametersnames: readonly string[]ReturnsPromise<{ name: string; value: string; } | undefined>