function()
{
/**
* Returns the host of the current connection.
*
* @return string|null
*/
public function getHost(): ?string;
/**
* @return string
*/
public function getConnectionCode();
/**
* Return the last config for this connection.
*
* @return array|null
*/
public function getLastCfg(): ?array;
/**
* @param array $cfg The user's options
* @return array|null The final configuration
*/
}
