Merge pull request #79 from utopia-php/remove-internal-ids

Remove $sequence N $collection

Author: abnegate

src/Migration/Sources/Appwrite.php

@@ -1019,6 +1019,8 @@ private function exportDocuments(int $batchSize): void
                     unset($document['$permissions']);
                     unset($document['$collectionId']);
                     unset($document['$databaseId']);
+                    unset($document['$sequence']);
+                    unset($document['$collection']);
 
                     $document = new Document(
                         $id,