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'use strict';
const get = require('../get');
module.exports = function applyWriteConcern(schema, options) {  const writeConcern = get(schema, 'options.writeConcern', {});  if (Object.keys(writeConcern).length != 0) {    options.writeConcern = {};    if (!('w' in options) && writeConcern.w != null) {      options.writeConcern.w = writeConcern.w;    }    if (!('j' in options) && writeConcern.j != null) {      options.writeConcern.j = writeConcern.j;    }    if (!('wtimeout' in options) && writeConcern.wtimeout != null) {      options.writeConcern.wtimeout = writeConcern.wtimeout;    }  }  else {    if (!('w' in options) && writeConcern.w != null) {      options.w = writeConcern.w;    }    if (!('j' in options) && writeConcern.j != null) {      options.j = writeConcern.j;    }    if (!('wtimeout' in options) && writeConcern.wtimeout != null) {      options.wtimeout = writeConcern.wtimeout;    }  }};