After a linking URI has been requested, finish_link must be called with the session_id provided with the URI. it will return information about the new account once the linking process is completed by the other device and the new account is setup. Note that the account setup process can sometimes take some time, if rapid userfeedback is required after scanning, use wait_for_scan first, then finish setup with finish_link.
This type can contain the following fields:
||boolean||overwrite existing account data if the phone number conflicts. false by default|