View Source ExTDLib.Object.Contact (ExTDLib v0.0.4)

Describes a user contact.

NameTypeDescription
phone_numberstringPhone number of the user.
first_namestringFirst name of the user; 1-255 characters in length.
last_namestringLast name of the user.
vcardstringAdditional data about the user in a form of vCard; 0-2048 bytes in length.
user_idstringIdentifier of the user, if known; 0 otherwise.

More details on telegram's documentation.