protected function header()
{
$this->iniciaHeader();
$this->add(1, 1, '0');
$this->add(2, 2, '1');
$this->add(3, 9, 'REMESSA');
$this->add(10, 11, '01');
$this->add(12, 26, Util::formatCnab('X', 'COBRANCA', 15));
$this->add(27, 31, Util::formatCnab('9', $this->getConta(), 5));
$this->add(32, 45, Util::formatCnab('9L', $this->getBeneficiario()->getDocumento(), 14, 0, 0));
$this->add(46, 76, '');
$this->add(77, 79, $this->getCodigoBanco());
$this->add(80, 94, Util::formatCnab('X', 'Sicredi', 15));
$this->add(95, 102, date('Ymd'));
$this->add(103, 110, '');
$this->add(111, 117, Util::formatCnab('9', $this->getIdremessa(), 7));
$this->add(118, 390, '');
$this->add(391, 394, '2.00');
$this->add(395, 400, Util::formatCnab('9', 1, 6));
return $this;
}