The code was sent via SMS as a secret word, starting with the letter specified in beginning
auth.sentCodeTypeSmsWord#a416ac81 flags:# beginning:flags.0?string = auth.SentCodeType;| Name | Type | Description | 
|---|---|---|
| flags | # | Flags, see TL conditional fields | 
| beginning | flags.0?string | If set, the secret word in the sent SMS (which may contain multiple words) starts with this letter. |