code: function runPrompt (argv, cb) {
    const questions = [
      {
        name: 'name',
        default: '',
        message: 'Package name'
      },
      {
        name: 'description',
        message: 'Module description',
        default: '',
        filter: function (str) {
          if (!str) return
          return str[0].toUpperCase() + str.slice(1)
        }
      },
      {
        name: 'tags',
        default: '',
        message: 'Module tags',
        filter: function (str) {
          str = str || ''
          return str.split(',').map(function (str) {
            return '"' + str.trim() + '"'
          })
        }
      }
    ]
  
    prompt(questions, function (res) {
      res.varName = variableName(res.name)
      assign(argv, res)
      cb()
    })
  }
docs: create prompt (obj, fn) -> null