_usedProperties['enabled'] = true; $this->enabled = $value; return $this; } public function __construct(array $config = []) { if (array_key_exists('enabled', $config)) { $this->_usedProperties['enabled'] = true; $this->enabled = $config['enabled']; unset($config['enabled']); } if ($config) { throw new InvalidConfigurationException(sprintf('The following keys are not supported by "%s": ', __CLASS__).implode(', ', array_keys($config))); } } public function toArray(): array { $output = []; if (isset($this->_usedProperties['enabled'])) { $output['enabled'] = $this->enabled; } return $output; } }