| 1234567891011121314151617181920212223 | const { promisify } = require('util')const fs = require('fs')const optsArg = opts => {  if (!opts)    opts = { mode: 0o777, fs }  else if (typeof opts === 'object')    opts = { mode: 0o777, fs, ...opts }  else if (typeof opts === 'number')    opts = { mode: opts, fs }  else if (typeof opts === 'string')    opts = { mode: parseInt(opts, 8), fs }  else    throw new TypeError('invalid options argument')  opts.mkdir = opts.mkdir || opts.fs.mkdir || fs.mkdir  opts.mkdirAsync = promisify(opts.mkdir)  opts.stat = opts.stat || opts.fs.stat || fs.stat  opts.statAsync = promisify(opts.stat)  opts.statSync = opts.statSync || opts.fs.statSync || fs.statSync  opts.mkdirSync = opts.mkdirSync || opts.fs.mkdirSync || fs.mkdirSync  return opts}module.exports = optsArg
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