How to use the ajv/lib/refs/json-schema-v5.json.id function in ajv

$data: true,
    allErrors: true,
    verbose: true,
    jsonPointers: true,
    patternGroups: true,
    extendRefs: true // optional, current default is to 'fail', spec behaviour is to 'ignore'
});
//meta: false, // optional, to prevent adding draft-06 meta-schema

let ajvFormats = require('ajv/lib/compile/formats.js');
ajv.addFormat('uriref', ajvFormats.full['uri-reference']);
ajv.addMetaSchema(require('ajv/lib/refs/json-schema-draft-04.json'));
ajv._refs['http://json-schema.org/schema'] = 'http://json-schema.org/draft-04/schema'; // optional, using unversioned URI is out of spec
let metaSchema = require('ajv/lib/refs/json-schema-v5.json');
ajv.addMetaSchema(metaSchema);
ajv._opts.defaultMeta = metaSchema.id;

const bae = require('better-ajv-errors');

class JSONSchemaError extends Error {
  constructor(message) {
    super(message);
    this.name = 'JSONSchemaError';
  }
}

class CLIError extends Error {
  constructor(message) {
    super(message);
    this.name = 'CLIError';
  }
}

let ajv = require('ajv')({
    allErrors: true,
    verbose: true,
    jsonPointers: true,
    patternGroups: true,
    extendRefs: true // optional, current default is to 'fail', spec behaviour is to 'ignore'
});
//meta: false, // optional, to prevent adding draft-06 meta-schema

let ajvFormats = require('ajv/lib/compile/formats.js');
ajv.addFormat('uriref', ajvFormats.full['uri-reference']);
ajv.addMetaSchema(require('ajv/lib/refs/json-schema-draft-04.json'));
ajv._refs['http://json-schema.org/schema'] = 'http://json-schema.org/draft-04/schema'; // optional, using unversioned URI is out of spec
let metaSchema = require('ajv/lib/refs/json-schema-v5.json');
ajv.addMetaSchema(metaSchema);
ajv._opts.defaultMeta = metaSchema.id;

const common = require('./common.js');
const jptr = require('reftools/lib/jptr.js');
const walkSchema = require('./walkSchema.js').walkSchema;
const wsGetDefaultState = require('./walkSchema.js').getDefaultState;
const linter = require('./linter/linter.js');

const jsonSchema = require('./schemas/json_v5.json');
const validateMetaSchema = ajv.compile(jsonSchema);
let openapi3Schema = require('./schemas/openapi-3.0.json');
let validateOpenAPI3 = ajv.compile(openapi3Schema);

const dummySchema = { anyOf: {} };
const emptySchema = {};
const urlRegexStr = '^(?!mailto:)(?:(?:http|https|ftp)://)(?:\\S+(?::\\S*)?@)?(?:(?:(?:[1-9]\\d?|1\\d\\d|2[01]\\d|22[0-3])(?:\\.(?:1?\\d{1,2}|2[0-4]\\d|25[0-5])){2}(?:\\.(?:[0-9]\\d?|1\\d\\d|2[0-4]\\d|25[0-4]))|(?:(?:[a-z\\u00a1-\\uffff0-9]+-?)*[a-z\\u00a1-\\uffff0-9]+)(?:\\.(?:[a-z\\u00a1-\\uffff0-9]+-?)*[a-z\\u00a1-\\uffff0-9]+)*(?:\\.(?:[a-z\\u00a1-\\uffff]{2,})))|localhost)(?::\\d{2,5})?(?:(/|\\?|#)[^\\s]*)?$';
const urlRegex = new RegExp(urlRegexStr, 'i');