|phone\_code\_hash|[string](../types/string.md) | Yes|Phone code hash, to be stored and later re-used with [auth.signIn](../methods/auth.signIn.md)|
|next\_type|[auth\_CodeType](../types/auth_CodeType.md) | Optional|Phone code type that will be sent next, if the phone code is not received within `timeout` seconds: to send it use [auth.resendCode](../methods/auth.resendCode.md)|
|timeout|[int](../types/int.md) | Optional|Timeout for reception of the phone code|