text: /*!
   * define-property <https://github.com/jonschlinkert/define-property>
   *
   * Copyright (c) 2015, 2017, Jon Schlinkert.
   * Released under the MIT License.
   */
  
  'use strict';
  
  var isDescriptor = require('is-descriptor');
  
  module.exports = function defineProperty(obj, prop, val) {
    if (typeof obj !== 'object' && typeof obj !== 'function') {
      throw new TypeError('expected an object or function.');
    }
  
    if (typeof prop !== 'string') {
      throw new TypeError('expected `prop` to be a string.');
    }
  
    if (isDescriptor(val) && ('set' in val || 'get' in val)) {
      return Object.defineProperty(obj, prop, val);
    }
  
    return Object.defineProperty(obj, prop, {
      configurable: true,
      enumerable: false,
      writable: true,
      value: val
    });
  };
  