src/Configuration.php
public function setPath(?string $path): Configuration
    {
        $this->path = realpath($path) ?: $path;

        return $this;
    }
public function setPath(?string $path): Configuration
    {
        $this->path = realpath($path) ?: $path;

        return $this;
    }
public function setPath ( ? string $ path ) : Configuration { $ this -> path = realpath ( $ path ) ? : $ path ; return $ this ; }
Set the configuration path

@param null|string $path
@return Configuration
Set the configuration path