[ 'size' => (int) EnvVars::DEFAULT_QR_CODE_SIZE->loadFromEnv(DEFAULT_QR_CODE_SIZE), 'margin' => (int) EnvVars::DEFAULT_QR_CODE_MARGIN->loadFromEnv(DEFAULT_QR_CODE_MARGIN), 'format' => EnvVars::DEFAULT_QR_CODE_FORMAT->loadFromEnv(DEFAULT_QR_CODE_FORMAT), 'error_correction' => EnvVars::DEFAULT_QR_CODE_ERROR_CORRECTION->loadFromEnv( DEFAULT_QR_CODE_ERROR_CORRECTION, ), 'round_block_size' => (bool) EnvVars::DEFAULT_QR_CODE_ROUND_BLOCK_SIZE->loadFromEnv( DEFAULT_QR_CODE_ROUND_BLOCK_SIZE, ), ], ];