How to use get-own-enumerable-property-symbols - 2 common examples

let value = stringify(el, options, pad + options.indent);
				if (options.transform) {
					value = options.transform(input, i, value);
				}

				return tokens.indent + value + eol;
			}).join('') + tokens.pad + ']';

			seen.pop();

			return expandWhiteSpace(ret);
		}

		if (isObj(input)) {
			let objKeys = Object.keys(input).concat(getOwnEnumPropSymbols(input));

			if (options.filter) {
				objKeys = objKeys.filter(el => options.filter(input, el));
			}

			if (objKeys.length === 0) {
				return '{}';
			}

			seen.push(input);

			const ret = '{' + tokens.newLine + objKeys.map((el, i) => {
				const eol = objKeys.length - 1 === i ? tokens.newLine : ',' + tokens.newLineOrSpace;
				const isSymbol = typeof el === 'symbol';
				const isClassic = !isSymbol && /^[a-z$_][a-z$_0-9]*$/i.test(el);
				const key = isSymbol || isClassic ? el : stringify(el, options);

value = options.transformValue(input, i, value)
            }

            return tokens.indent + value + eol
          })
          .join('') +
        tokens.pad +
        ']'

      seen.pop()

      return expandWhiteSpace(ret)
    }

    if (isObj(input)) {
      let objKeys = Object.keys(input).concat(getOwnEnumPropSymbols(input))

      if (options.filter) {
        objKeys = objKeys.filter(el => options.filter(input, el))
      }

      if (objKeys.length === 0) {
        return '{}'
      }

      seen.push(input)

      const ret =
        '{' +
        tokens.newLine +
        objKeys
          .map((el, i) => {