Init

Shared/Models/MetadataFile.cs

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+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace View_by_Distance.Shared.Models;
+
+public class MetadataFile : Properties.IMetadataFile
+{
+
+    protected readonly MetadataFileId _Id; // {-_-}SingletonClass
+    protected readonly MetadataFileCollection _Collection; // {-_-}SingletonClass
+
+    public MetadataFileId Id => _Id; // {-_-}SingletonClass
+    public MetadataFileCollection Collection => _Collection; // {-_-}SingletonClass
+
+    [JsonConstructor]
+    public MetadataFile
+    (
+        MetadataFileId id,
+        MetadataFileCollection collection
+    )
+    {
+        _Id = id; // {-_-}SingletonClass
+        _Collection = collection; // {-_-}SingletonClass
+    }
+
+    public override string ToString()
+    {
+        string result = JsonSerializer.Serialize(this, new JsonSerializerOptions() { WriteIndented = true });
+        return result;
+    } // ...
+
+}