/**
* Add a Header to this container, for raw values @see addHeaderLine() and addHeaders()
*
* @param Header $header
* @return Headers
*/
public function addHeader(Header $header)
{
$key = $this->normalizeFieldName($header->getFieldName());
$this->headersKeys[] = $key;
$this->headers[] = $header;
$header->setEncoding($this->getEncoding());
return $this;
}
