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/**
* ES6 Promise wrapper constructor.
*
* Promises are returned from executed queries. Example:
*
* var query = Candy.find({ bar: true });
* var promise = query.exec();
*
* DEPRECATED. Mongoose 5.0 will use native promises by default (or bluebird,
* if native promises are not present) but still
* support plugging in your own ES6-compatible promises library. Mongoose 5.0
* will **not** support mpromise.
*
* @param {Function} fn a function which will be called when the promise is resolved that accepts `fn(err, ...){}` as signature
* @api public
*/
function ES6Promise() {
throw new Error('Can\'t use ES6 promise with mpromise style constructor');
}
ES6Promise.use = function(Promise) {
ES6Promise.ES6 = Promise;
};
module.exports = ES6Promise;
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