add xml comments for AgentExceptions.cs

dotnet/src/Microsoft.AutoGen/Contracts/PythonEquiv/AgentExceptions.cs

@@ -3,10 +3,27 @@
 
 namespace Microsoft.AutoGen.Contracts.Python;
 
+/// <summary>
+/// Exception thrown when a handler cannot process the given message.
+/// </summary>
 public class CantHandleException : Exception
 {
+    /// <summary>
+    /// Initializes a new instance of the <see cref="CantHandleException"/> class.
+    /// </summary>
     public CantHandleException() : base("The handler cannot process the given message.") { }
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="CantHandleException"/> class with a custom error message.
+    /// </summary>
+    /// <param name="message">The custom error message.</param>
     public CantHandleException(string message) : base(message) { }
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="CantHandleException"/> class with a custom error message and an inner exception.
+    /// </summary>
+    /// <param name="message">The custom error message.</param>
+    /// <param name="innerException">The inner exception that caused this error.</param>
     public CantHandleException(string message, Exception innerException) : base(message, innerException) { }
 }
 
@@ -15,21 +32,69 @@ public class CantHandleException : Exception
 /// </summary>
 public class UndeliverableException : Exception
 {
+    /// <summary>
+    /// Initializes a new instance of the <see cref="UndeliverableException"/> class.
+    /// </summary>
     public UndeliverableException() : base("The message cannot be delivered.") { }
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="UndeliverableException"/> class with a custom error message.
+    /// </summary>
+    /// <param name="message">The custom error message.</param>
     public UndeliverableException(string message) : base(message) { }
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="UndeliverableException"/> class with a custom error message and an inner exception.
+    /// </summary>
+    /// <param name="message">The custom error message.</param>
+    /// <param name="innerException">The inner exception that caused this error.</param>
     public UndeliverableException(string message, Exception innerException) : base(message, innerException) { }
 }
 
+/// <summary>
+/// Exception thrown when a message is dropped.
+/// </summary>
 public class MessageDroppedException : Exception
 {
+    /// <summary>
+    /// Initializes a new instance of the <see cref="MessageDroppedException"/> class.
+    /// </summary>
     public MessageDroppedException() : base("The message was dropped.") { }
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="MessageDroppedException"/> class with a custom error message.
+    /// </summary>
+    /// <param name="message">The custom error message.</param>
     public MessageDroppedException(string message) : base(message) { }
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="MessageDroppedException"/> class with a custom error message and an inner exception.
+    /// </summary>
+    /// <param name="message">The custom error message.</param>
+    /// <param name="innerException">The inner exception that caused this error.</param>
     public MessageDroppedException(string message, Exception innerException) : base(message, innerException) { }
 }
 
+/// <summary>
+/// Exception thrown when an attempt is made to access an unavailable value, such as a remote resource.
+/// </summary>
 public class NotAccessibleError : Exception
 {
+    /// <summary>
+    /// Initializes a new instance of the <see cref="NotAccessibleError"/> class.
+    /// </summary>
     public NotAccessibleError() : base("The requested value is not accessible.") { }
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="NotAccessibleError"/> class with a custom error message.
+    /// </summary>
+    /// <param name="message">The custom error message.</param>
     public NotAccessibleError(string message) : base(message) { }
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="NotAccessibleError"/> class with a custom error message and an inner exception.
+    /// </summary>
+    /// <param name="message">The custom error message.</param>
+    /// <param name="innerException">The inner exception that caused this error.</param>
     public NotAccessibleError(string message, Exception innerException) : base(message, innerException) { }
 }