## What kind of change does this PR introduce?

Bug fix for the TypeScript types.

## What is the current behavior?

- Fixes supabase/auth-js#955

## What is the new behavior?

Use [TypeScript's function
overloading](https://www.typescriptlang.org/docs/handbook/2/functions.html#function-overloads)
to return

- TOTP data when `mfa.enroll` was passed `factorType: 'totp'`,
- phone data when `mfa.enroll` was passed `factorType: 'phone'`.

This fixes a breaking change in the types in
72c60f4.

## Additional context

This PR would also expose the new following types:

- `MFAEnrollTOTPParams`
- `MFAEnrollPhoneParams`
- `AuthMFAEnrollTOTPResponse`
- `AuthMFAEnrollPhoneResponse`
- `AuthMFAEnrollErrorResponse` (it might be better to roll this type in
with the other two).

It might be better to keep these types private, since once they're
exposed, you can't easily remove them again without creating a breaking
change.

## What kind of change does this PR introduce?

Follow up to #956, hides the MFA sub-types (e.g. MFA Phone, MFA TOTP)
needed to fix type errors before we release to public so that we can
remove them as and when we like. The sub-types are now stored in an
`internal-types` file which, unlike the `types` file is not exposed to
public.


The types mentioned here have not been released yet so fine to hide them

🤖 I have created a release *beep* *boop*
---


##
[2.65.1](supabase/auth-js@v2.65.0...v2.65.1)
(2024-10-14)


### Bug Fixes

* Call `SIGNED_OUT` event where session is removed
([#854](supabase/auth-js#854))
([421d7d4](supabase/auth-js@421d7d4))
* improve `mfa.enroll` return types
([#956](supabase/auth-js#956))
([aca7870](supabase/auth-js@aca7870))
* move MFA sub types to internal file
([#964](supabase/auth-js#964))
([70cecdb](supabase/auth-js@70cecdb))
* remove phone mfa deletion, match on error codes
([#963](supabase/auth-js#963))
([3547cd9](supabase/auth-js@3547cd9))

---
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