What version of Ajv are you using? Does the issue happen if you use the latest version?

I was using 6, I wanted to migrate to 8.

Ajv options object

N/A

JSON Schema

N/A

Your code

In v6 I could write code like:

import {ValidationError} from 'ajv';
function formatAjvError(error: ValidationError): CustomErrorDto {}

In v8 I must write:

import Ajv from 'ajv';
function formatAjvError(error: InstanceType<typeof Ajv['ValidationError']>): CustomErrorDto {}

This is unnecessary verbose.

What results did you expect?

ValidationError is directly exported from ajv module.

Are you going to resolve the issue?

Yes, I can make PR for that.