core-js/modules/es.object.to-string.js

Standard library

var toString = require('../internals/object-to-string');
var ObjectPrototype = Object.prototype;

// `Object.prototype.toString` method
// https://tc39.github.io/ecma262/#sec-object.prototype.tostring
if (toString !== ObjectPrototype.toString) {
  require('../internals/redefine')(ObjectPrototype, 'toString', toString, { unsafe: true });
}