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- 'use strict';
- var $TypeError = require('es-errors/type');
- var callBound = require('call-bind/callBound');
- var $SymbolToString = callBound('Symbol.prototype.toString', true);
- // https://262.ecma-international.org/6.0/#sec-symboldescriptivestring
- module.exports = function SymbolDescriptiveString(sym) {
- if (typeof sym !== 'symbol') {
- throw new $TypeError('Assertion failed: `sym` must be a Symbol');
- }
- return $SymbolToString(sym);
- };
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