src/Table/TableView.php
public function addHeader($key, $value, $begin = false)
    {
        if ($begin) {
            $headers[$key] = $value;
            $this->headers = array_merge($headers, $this->headers);
        } else {
            $this->headers[$key] = $value;
        }

        return $this;
    }
public function addHeader($key, $value, $begin = false)
    {
        if ($begin) {
            $headers[$key] = $value;
            $this->headers = array_merge($headers, $this->headers);
        } else {
            $this->headers[$key] = $value;
        }

        return $this;
    }
@param string    $key
@param string    $value
@param bool      $begin

@return $this