How to use the pouchdb-utils.guardedConsole function in pouchdb-utils

/* global PouchDB */

// this code only runs in the browser, as its own dist/ script

import FruitdownPouchPlugin from 'pouchdb-adapter-fruitdown';
import { guardedConsole } from 'pouchdb-utils';

if (typeof PouchDB === 'undefined') {
  guardedConsole('error', 'fruitdown adapter plugin error: ' +
    'Cannot find global "PouchDB" object! ' +
    'Did you remember to include pouchdb.js?');
} else {
  PouchDB.plugin(FruitdownPouchPlugin);
}

/* global PouchDB */

import LocalStoragePouchPlugin from 'pouchdb-adapter-localstorage';
import { guardedConsole } from 'pouchdb-utils';

var PDB = (typeof PouchDB !== 'undefined') ? PouchDB : require('pouchdb');
if (!PDB) {
  guardedConsole('error', 'localstorage adapter plugin error: ' +
    'Cannot find global "PouchDB" object! ' +
    'Did you remember to include pouchdb.js?');
} else {
  LocalStoragePouchPlugin(PDB);
}

return function (event) {
    guardedConsole('error', 'WebSQL threw an error', event);
    // event may actually be a SQLError object, so report is as such
    var errorNameMatch = event && event.constructor.toString()
        .match(/function ([^(]+)/);
    var errorName = (errorNameMatch && errorNameMatch[1]) || event.type;
    var errorReason = event.target || event.message;
    callback(createError(WSQ_ERROR, errorReason, errorName));
  };
}

/* global PouchDB */

// this code only runs in the browser, as its own dist/ script

import MemoryPouchPlugin from 'pouchdb-adapter-memory';
import { guardedConsole } from 'pouchdb-utils';

if (typeof PouchDB === 'undefined') {
  guardedConsole('error', 'memory adapter plugin error: ' +
    'Cannot find global "PouchDB" object! ' +
    'Did you remember to include pouchdb.js?');
} else {
  PouchDB.plugin(MemoryPouchPlugin);
}

/* global PouchDB */

// this code only runs in the browser, as its own dist/ script

import FruitdownPouchPlugin from 'pouchdb-adapter-fruitdown';
import { guardedConsole } from 'pouchdb-utils';

if (typeof PouchDB === 'undefined') {
  guardedConsole('error', 'fruitdown adapter plugin error: ' +
    'Cannot find global "PouchDB" object! ' +
    'Did you remember to include pouchdb.js?');
} else {
  PouchDB.plugin(FruitdownPouchPlugin);
}

/* global PouchDB */

import FruitdownPouchPlugin from 'pouchdb-adapter-fruitdown';
import { guardedConsole } from 'pouchdb-utils';

var PDB = (typeof PouchDB !== 'undefined') ? PouchDB : require('pouchdb');
if (!PDB) {
  guardedConsole('error', 'fruitdown adapter plugin error: ' +
    'Cannot find global "PouchDB" object! ' +
    'Did you remember to include pouchdb.js?');
} else {
  FruitdownPouchPlugin(PDB);
}

/* global PouchDB */

// this code only runs in the browser, as its own dist/ script

import LocalStoragePouchPlugin from 'pouchdb-adapter-localstorage';
import { guardedConsole } from 'pouchdb-utils';

if (typeof PouchDB === 'undefined') {
  guardedConsole('error', 'localstorage adapter plugin error: ' +
    'Cannot find global "PouchDB" object! ' +
    'Did you remember to include pouchdb.js?');
} else {
  PouchDB.plugin(LocalStoragePouchPlugin);
}

function emitError(db, e) {
  try {
    db.emit('error', e);
  } catch (err) {
    guardedConsole('error',
      'The user\'s map/reduce function threw an uncaught error.\n' +
      'You can debug this error by doing:\n' +
      'myDatabase.on(\'error\', function (err) { debugger; });\n' +
      'Please double-check your map/reduce function.');
    guardedConsole('error', e);
  }
}

function emitError(db, e) {
  try {
    db.emit('error', e);
  } catch (err) {
    guardedConsole('error',
      'The user\'s map/reduce function threw an uncaught error.\n' +
      'You can debug this error by doing:\n' +
      'myDatabase.on(\'error\', function (err) { debugger; });\n' +
      'Please double-check your map/reduce function.');
    guardedConsole('error', e);
  }
}

Object.keys(doc._attachments).forEach(function (name) {
        attachmentError = attachmentError || attachmentNameError(name);
        if (!doc._attachments[name].content_type) {
          guardedConsole('warn', 'Attachment', name, 'on document', doc._id, 'is missing content_type');
        }
      });
    }