Source

File: wp-includes/Requests/Auth/Basic.php

public function __construct($args = null) {
		if (is_array($args)) {
			if (count($args) !== 2) {
				throw new Requests_Exception('Invalid number of arguments', 'authbasicbadargs');
			}

			list($this->user, $this->pass) = $args;
		}
	}