Logtalk reference manual
Built-in method: sender/1
Contents > Reference Manual > Built-in Methods > sender/1

## sender/1

#### Description

    sender(Sender)

Returns the object that has sent the message under processing. This private method is translated into a unification between its argument and the corresponding implicit context argument in the predicate containing the call. This unification occurs at the clause head, not at the clause body.

#### Template and modes

    sender(?object_identifier)

#### Errors

`(none)`

#### Examples

    % after compilation, the write/1 call will be the first goal on the clause body:

    test :-
        sender(Sender),
        write('executing a method to answer a message sent by '),
        writeq(Sender), nl.