final public function getNamespace(): string
    {
        if (null === $this->namespace) {
            $pos             = strrpos(static::class, '\\');
            $this->namespace = false === $pos ? '' : substr(static::class, 0, $pos);
        }

        return $this->namespace;
    }
final public function getNamespace(): string
    {
        if (null === $this->namespace) {
            $pos             = strrpos(static::class, '\\');
            $this->namespace = false === $pos ? '' : substr(static::class, 0, $pos);
        }

        return $this->namespace;
    }
final public function getNamespace ( ) : string { if ( null === $ this -> namespace ) { $ pos = strrpos ( static :: class , '\\' ) ; $ this -> namespace = false === $ pos ? '' : substr ( static :: class , 0 , $ pos ) ; } return $ this -> namespace ; }
Gets the Extension namespace.

@return string The Extension namespace
Gets the Extension namespace .