How to extend what Registration does?

Thank you friends for your help!
Today I spent the whole day trying to set up registration for Front Next via Strapi. It was necessary to add two fields - First name and Last Name. Until I came across this page, I was in despair.

But everything was solved super!

Here is my code where I combined UsersPermissionsMe and UsersPermissionsRegisterInput.

  register({ strapi }) {
    const extensionService = strapi.plugin('graphql').service('extension');
    extensionService.use(({ nexus }) => ({
      types: [
        nexus.extendType({
          type: 'UsersPermissionsMe',
          definition(t) {
            // Здесь определите поля, которые вам нужны для типа UsersPermissionsMe
            t.string('firstName');
            t.string('lastName');
          },
        }),
        nexus.extendInputType({
          type: 'UsersPermissionsRegisterInput',
          definition(t) {
            // Здесь определите поля, которые вам нужны для типа UsersPermissionsRegisterInput
            t.string('firstName');
            t.string('lastName');
          },
        }),
      ],
    }));
  },