private function processDefaultEntity(array $backendConfig)
    {
        $entityNames = \array_keys($backendConfig['entities']);
        $firstEntityName = $entityNames[0] ?? null;
        $backendConfig['default_entity_name'] = $firstEntityName;

        return $backendConfig;
    }
private function processDefaultEntity(array $backendConfig)
    {
        $entityNames = \array_keys($backendConfig['entities']);
        $firstEntityName = $entityNames[0] ?? null;
        $backendConfig['default_entity_name'] = $firstEntityName;

        return $backendConfig;
    }
private function processDefaultEntity ( array $ backendConfig ) { $ entityNames = \ array_keys ( $ backendConfig [ 'entities' ] ) ; $ firstEntityName = $ entityNames [ 0 ] ?? null ; $ backendConfig [ 'default_entity_name' ] = $ firstEntityName ; return $ backendConfig ; }
Finds the default entity to display when the backend index is not
defined explicitly.

@param array $backendConfig

@return array
Finds the default entity to display when the backend index is not defined explicitly .