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'use strict';
const MongooseError = require('../../error/mongooseError');const util = require('util');
module.exports = validateRef;
function validateRef(ref, path) {  if (typeof ref === 'string') {    return;  }
  if (typeof ref === 'function') {    return;  }
  throw new MongooseError('Invalid ref at path "' + path + '". Got ' +    util.inspect(ref, { depth: 0 }));}