FluentDOM\Document::namespaces PHP Method

    public function namespaces(array $namespaces = NULL)
    {
        if (isset($namespaces)) {
            $this->_namespaces = [];
            foreach ($namespaces as $prefix => $namespaceUri) {
                $this->registerNamespace($prefix, $namespaceUri);
            }
        }
        return $this->_namespaces;
    }