PhpCsFixer\Fixer\Whitespace\NoSpacesAroundOffsetFixer::configure PHP Метод

    public function configure(array $configuration = null)
    {
        if (null === $configuration) {
            $this->configuration = self::$defaultConfiguration;
            return;
        }
        foreach ($configuration as $name) {
            if (!in_array($name, self::$defaultConfiguration, true)) {
                throw new InvalidFixerConfigurationException($this->getName(), sprintf('Unknown configuration option "%s".', $name));
            }
        }
        $this->configuration = $configuration;
    }