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/*!
* ignore
*/
'use strict';
const assert = require('assert');
const mquery = require('mquery');
/**
* Helper for multiplexing promise implementations
*
* @api private
*/
const store = {
_promise: null
};
/**
* Get the current promise constructor
*
* @api private
*/
store.get = function() {
return store._promise;
};
/**
* Set the current promise constructor
*
* @api private
*/
store.set = function(lib) {
assert.ok(typeof lib === 'function',
`mongoose.Promise must be a function, got ${lib}`);
store._promise = lib;
mquery.Promise = lib;
};
/*!
* Use native promises by default
*/
store.set(global.Promise);
module.exports = store;
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