MadelineProto/docs/TD_docs/constructors/contact.md

title	description
contact	Describes user contact

Constructor: contact

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Describes user contact

Attributes:

Name	Type	Required	Description
phone_number	string	Yes	User's phone number
first_name	string	Yes	User first name, 1-255 characters
last_name	string	Yes	User last name
user_id	int	Yes	User identifier if known, 0 otherwise

Type: Contact

Example:

$contact = ['_' => 'contact', 'phone_number' => string, 'first_name' => string, 'last_name' => string, 'user_id' => int, ];

Or, if you're into Lua:

contact={_='contact', phone_number=string, first_name=string, last_name=string, user_id=int, }