docs: add missing xml comments

src/AnthropicClient/Models/AnthropicEvent.cs

@@ -2,9 +2,19 @@ using System.Text.Json.Serialization;
 
 namespace AnthropicClient.Models;
 
+/// <summary>
+/// Represents an event from the Anthropic API.
+/// </summary>
 public class AnthropicEvent
 {
+  /// <summary>
+  /// The type of the event.
+  /// </summary>
   public string Type { get; init; } = string.Empty;
+
+  /// <summary>
+  /// The data associated with the event.
+  /// </summary>
   public EventData Data { get; init; } = default!;
 
   [JsonConstructor]
@@ -12,6 +22,12 @@ public class AnthropicEvent
   {
   }
 
+  /// <summary>
+  /// Initializes a new instance of the <see cref="AnthropicEvent"/> class.
+  /// </summary>
+  /// <param name="type">The type of the event.</param>
+  /// <param name="data">The data associated with the event.</param>
+  /// <returns>A new instance of the <see cref="AnthropicEvent"/> class.</returns>
   public AnthropicEvent(string type, EventData data)
   {
     Type = type;