From f1bca0c26f0063f2372319ecc8b0a321267640f9 Mon Sep 17 00:00:00 2001
From: CeciliaAvila <cecilia.avila@southworks.com>
Date: Thu, 27 Jul 2023 15:53:44 -0300
Subject: [PATCH 1/5] Add teams meeting participants events

---
 .../Teams/TeamsActivityHandler.cs             | 32 ++++++++++
 .../MeetingParticipantsAddedEventDetails.cs   | 58 +++++++++++++++++++
 .../MeetingParticipantsRemovedEventDetails.cs | 58 +++++++++++++++++++
 3 files changed, 148 insertions(+)
 create mode 100644 libraries/Microsoft.Bot.Schema/Teams/MeetingParticipantsAddedEventDetails.cs
 create mode 100644 libraries/Microsoft.Bot.Schema/Teams/MeetingParticipantsRemovedEventDetails.cs

diff --git a/libraries/Microsoft.Bot.Builder/Teams/TeamsActivityHandler.cs b/libraries/Microsoft.Bot.Builder/Teams/TeamsActivityHandler.cs
index 06b57931db..2d929901d6 100644
--- a/libraries/Microsoft.Bot.Builder/Teams/TeamsActivityHandler.cs
+++ b/libraries/Microsoft.Bot.Builder/Teams/TeamsActivityHandler.cs
@@ -809,6 +809,10 @@ protected override Task OnEventActivityAsync(ITurnContext<IEventActivity> turnCo
                         return OnTeamsMeetingStartAsync(JObject.FromObject(turnContext.Activity.Value).ToObject<MeetingStartEventDetails>(), turnContext, cancellationToken);
                     case "application/vnd.microsoft.meetingEnd":
                         return OnTeamsMeetingEndAsync(JObject.FromObject(turnContext.Activity.Value).ToObject<MeetingEndEventDetails>(), turnContext, cancellationToken);
+                    case "application/vnd.microsoft.meetingParticipantsAdded":
+                        return OnTeamsMeetingParticipantsAddedAsync(JObject.FromObject(turnContext.Activity.Value).ToObject<MeetingParticipantsAddedEventDetails>(), turnContext, cancellationToken);
+                    case "application/vnd.microsoft.meetingParticipantsRemoved":
+                        return OnTeamsMeetingParticipantsRemovedAsync(JObject.FromObject(turnContext.Activity.Value).ToObject<MeetingParticipantsRemovedEventDetails>(), turnContext, cancellationToken);
                 }
             }
 
@@ -857,6 +861,34 @@ protected virtual Task OnTeamsReadReceiptAsync(ReadReceiptInfo readReceiptInfo,
             return Task.CompletedTask;
         }
 
+        /// <summary>
+        /// Invoked when a Teams Participants Added event activity is received from the connector.
+        /// Override this in a derived class to provide logic for when meeting participants are added.
+        /// </summary>
+        /// <param name="meeting">The details of the meeting.</param>
+        /// <param name="turnContext">A strongly-typed context object for this turn.</param>
+        /// <param name="cancellationToken">A cancellation token that can be used by other objects
+        /// or threads to receive notice of cancellation.</param>
+        /// <returns>A task that represents the work queued to execute.</returns>
+        protected virtual Task OnTeamsMeetingParticipantsAddedAsync(MeetingParticipantsAddedEventDetails meeting, ITurnContext<IEventActivity> turnContext, CancellationToken cancellationToken)
+        {
+            return Task.CompletedTask;
+        }
+
+        /// <summary>
+        /// Invoked when a Teams Participants Removed event activity is received from the connector.
+        /// Override this in a derived class to provide logic for when meeting participants are removed.
+        /// </summary>
+        /// <param name="meeting">The details of the meeting.</param>
+        /// <param name="turnContext">A strongly-typed context object for this turn.</param>
+        /// <param name="cancellationToken">A cancellation token that can be used by other objects
+        /// or threads to receive notice of cancellation.</param>
+        /// <returns>A task that represents the work queued to execute.</returns>
+        protected virtual Task OnTeamsMeetingParticipantsRemovedAsync(MeetingParticipantsRemovedEventDetails meeting, ITurnContext<IEventActivity> turnContext, CancellationToken cancellationToken)
+        {
+            return Task.CompletedTask;
+        }
+
         /// <summary>
         /// Invoked when an message update activity is received.
         /// <see cref="ActivityTypes.MessageUpdate"/> activities, such as the conversational logic.
diff --git a/libraries/Microsoft.Bot.Schema/Teams/MeetingParticipantsAddedEventDetails.cs b/libraries/Microsoft.Bot.Schema/Teams/MeetingParticipantsAddedEventDetails.cs
new file mode 100644
index 0000000000..7bd75bb843
--- /dev/null
+++ b/libraries/Microsoft.Bot.Schema/Teams/MeetingParticipantsAddedEventDetails.cs
@@ -0,0 +1,58 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+using System;
+using System.Collections.Generic;
+using Newtonsoft.Json;
+
+namespace Microsoft.Bot.Schema.Teams
+{
+    /// <summary>
+    /// Specific details of a Teams meeting participants added event.
+    /// </summary>
+    public partial class MeetingParticipantsAddedEventDetails : MeetingEventDetails
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="MeetingParticipantsAddedEventDetails"/> class.
+        /// </summary>
+        public MeetingParticipantsAddedEventDetails()
+        {
+            CustomInit();
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="MeetingParticipantsAddedEventDetails"/> class.
+        /// </summary>
+        /// <param name="id">The meeting's Id, encoded as a BASE64 string.</param>
+        /// <param name="joinUrl">The URL used to join the meeting.</param>
+        /// <param name="title">The title of the meeting.</param>
+        /// <param name="meetingType">The meeting's type.</param>
+        /// <param name="participantsAdded">The added participant accounts.</param>
+        public MeetingParticipantsAddedEventDetails(
+            string id,
+            Uri joinUrl = null,
+            string title = null,
+            string meetingType = "Scheduled",
+            IList<TeamsChannelAccount> participantsAdded = default)
+            : base(id, joinUrl, title, meetingType)
+        {
+            ParticipantsAdded = participantsAdded;
+
+            CustomInit();
+        }
+
+        /// <summary>
+        /// Gets the added meeting participants.
+        /// </summary>
+        /// <value>
+        /// The added participant accounts.
+        /// </value>
+        [JsonProperty(PropertyName = "ParticipantsAdded")]
+        public IList<TeamsChannelAccount> ParticipantsAdded { get; private set; } = new List<TeamsChannelAccount>();
+
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults.
+        /// </summary>
+        partial void CustomInit();
+    }
+}
diff --git a/libraries/Microsoft.Bot.Schema/Teams/MeetingParticipantsRemovedEventDetails.cs b/libraries/Microsoft.Bot.Schema/Teams/MeetingParticipantsRemovedEventDetails.cs
new file mode 100644
index 0000000000..ab9216d12c
--- /dev/null
+++ b/libraries/Microsoft.Bot.Schema/Teams/MeetingParticipantsRemovedEventDetails.cs
@@ -0,0 +1,58 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+using System;
+using System.Collections.Generic;
+using Newtonsoft.Json;
+
+namespace Microsoft.Bot.Schema.Teams
+{
+    /// <summary>
+    /// Specific details of a Teams meeting participants removed event.
+    /// </summary>
+    public partial class MeetingParticipantsRemovedEventDetails : MeetingEventDetails
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="MeetingParticipantsRemovedEventDetails"/> class.
+        /// </summary>
+        public MeetingParticipantsRemovedEventDetails()
+        {
+            CustomInit();
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="MeetingParticipantsRemovedEventDetails"/> class.
+        /// </summary>
+        /// <param name="id">The meeting's Id, encoded as a BASE64 string.</param>
+        /// <param name="joinUrl">The URL used to join the meeting.</param>
+        /// <param name="title">The title of the meeting.</param>
+        /// <param name="meetingType">The meeting's type.</param>
+        /// <param name="participantsRemoved">The removed participant accounts.</param>
+        public MeetingParticipantsRemovedEventDetails(
+            string id,
+            Uri joinUrl = null,
+            string title = null,
+            string meetingType = "Scheduled",
+            IList<TeamsChannelAccount> participantsRemoved = default)
+            : base(id, joinUrl, title, meetingType)
+        {
+            ParticipantsRemoved = participantsRemoved;
+
+            CustomInit();
+        }
+
+        /// <summary>
+        /// Gets the removed meeting participants.
+        /// </summary>
+        /// <value>
+        /// The removed participant accounts.
+        /// </value>
+        [JsonProperty(PropertyName = "ParticipantsRemoved")]
+        public IList<TeamsChannelAccount> ParticipantsRemoved { get; private set; } = new List<TeamsChannelAccount>();
+
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults.
+        /// </summary>
+        partial void CustomInit();
+    }
+}

From 5cc161457cc008446917d870d573da0c1696c95f Mon Sep 17 00:00:00 2001
From: CeciliaAvila <cecilia.avila@southworks.com>
Date: Thu, 27 Jul 2023 15:54:02 -0300
Subject: [PATCH 2/5] Add unit tests for the new classes and methods

---
 .../Teams/TeamsActivityHandlerTests.cs        | 88 +++++++++++++++++++
 ...etingParticipantsAddedEventDetailsTests.cs | 48 ++++++++++
 ...ingParticipantsRemovedEventDetailsTests.cs | 48 ++++++++++
 3 files changed, 184 insertions(+)
 create mode 100644 tests/Microsoft.Bot.Schema.Tests/Teams/MeetingParticipantsAddedEventDetailsTests.cs
 create mode 100644 tests/Microsoft.Bot.Schema.Tests/Teams/MeetingParticipantsRemovedEventDetailsTests.cs

diff --git a/tests/Microsoft.Bot.Builder.Tests/Teams/TeamsActivityHandlerTests.cs b/tests/Microsoft.Bot.Builder.Tests/Teams/TeamsActivityHandlerTests.cs
index f13d0326d0..092209dfc3 100644
--- a/tests/Microsoft.Bot.Builder.Tests/Teams/TeamsActivityHandlerTests.cs
+++ b/tests/Microsoft.Bot.Builder.Tests/Teams/TeamsActivityHandlerTests.cs
@@ -1270,6 +1270,80 @@ void CaptureSend(Activity[] arg)
             Assert.Equal("10101010", activitiesToSend[0].Text);
         }
 
+        [Fact]
+        public async Task TestMeetingParticipantsAddedEvent()
+        {
+            // Arrange
+            var activity = new Activity
+            {
+                ChannelId = Channels.Msteams,
+                Type = ActivityTypes.Event,
+                Name = "application/vnd.microsoft.meetingParticipantsAdded",
+                Value = JObject.Parse(@"{
+                    ParticipantsAdded: [
+                        {Id: 'id', Name: 'name'}
+                    ]
+                }"),
+            };
+
+            Activity[] activitiesToSend = null;
+            void CaptureSend(Activity[] arg)
+            {
+                activitiesToSend = arg;
+            }
+
+            var turnContext = new TurnContext(new SimpleAdapter(CaptureSend), activity);
+
+            // Act
+            var bot = new TestActivityHandler();
+            await ((IBot)bot).OnTurnAsync(turnContext);
+
+            // Assert
+            Assert.Equal(2, bot.Record.Count);
+            Assert.Equal("OnEventActivityAsync", bot.Record[0]);
+            Assert.Equal("OnTeamsMeetingParticipantsAddedAsync", bot.Record[1]);
+            Assert.NotNull(activitiesToSend);
+            Assert.Single(activitiesToSend);
+            Assert.Equal("id", activitiesToSend[0].Text);
+        }
+
+        [Fact]
+        public async Task TestMeetingParticipantsRemovedEvent()
+        {
+            // Arrange
+            var activity = new Activity
+            {
+                ChannelId = Channels.Msteams,
+                Type = ActivityTypes.Event,
+                Name = "application/vnd.microsoft.meetingParticipantsRemoved",
+                Value = JObject.Parse(@"{
+                    ParticipantsRemoved: [
+                        {Id: 'id', Name: 'name'}
+                    ]
+                }"),
+            };
+
+            Activity[] activitiesToSend = null;
+            void CaptureSend(Activity[] arg)
+            {
+                activitiesToSend = arg;
+            }
+
+            var turnContext = new TurnContext(new SimpleAdapter(CaptureSend), activity);
+
+            // Act
+            var bot = new TestActivityHandler();
+            await ((IBot)bot).OnTurnAsync(turnContext);
+
+            // Assert
+            Assert.Equal(2, bot.Record.Count);
+            Assert.Equal("OnEventActivityAsync", bot.Record[0]);
+            Assert.Equal("OnTeamsMeetingParticipantsRemovedAsync", bot.Record[1]);
+            Assert.NotNull(activitiesToSend);
+            Assert.Single(activitiesToSend);
+            Assert.Equal("id", activitiesToSend[0].Text);
+        }
+
         [Fact]
         public async Task TestMessageUpdateActivityTeamsMessageEdit()
         {
@@ -1536,6 +1610,20 @@ protected override Task OnTeamsReadReceiptAsync(ReadReceiptInfo readReceiptInfo,
                 return Task.CompletedTask;
             }
 
+            protected override Task OnTeamsMeetingParticipantsAddedAsync(MeetingParticipantsAddedEventDetails meeting, ITurnContext<IEventActivity> turnContext, CancellationToken cancellationToken)
+            {
+                Record.Add(MethodBase.GetCurrentMethod().Name);
+                turnContext.SendActivityAsync(meeting.ParticipantsAdded[0].Id);
+                return base.OnTeamsMeetingParticipantsAddedAsync(meeting, turnContext, cancellationToken);
+            }
+
+            protected override Task OnTeamsMeetingParticipantsRemovedAsync(MeetingParticipantsRemovedEventDetails meeting, ITurnContext<IEventActivity> turnContext, CancellationToken cancellationToken)
+            {
+                Record.Add(MethodBase.GetCurrentMethod().Name);
+                turnContext.SendActivityAsync(meeting.ParticipantsRemoved[0].Id);
+                return base.OnTeamsMeetingParticipantsRemovedAsync(meeting, turnContext, cancellationToken);
+            }
+
             // Invoke
             protected override Task<InvokeResponse> OnInvokeActivityAsync(ITurnContext<IInvokeActivity> turnContext, CancellationToken cancellationToken)
             {
diff --git a/tests/Microsoft.Bot.Schema.Tests/Teams/MeetingParticipantsAddedEventDetailsTests.cs b/tests/Microsoft.Bot.Schema.Tests/Teams/MeetingParticipantsAddedEventDetailsTests.cs
new file mode 100644
index 0000000000..9063f78116
--- /dev/null
+++ b/tests/Microsoft.Bot.Schema.Tests/Teams/MeetingParticipantsAddedEventDetailsTests.cs
@@ -0,0 +1,48 @@
+// Copyright(c) Microsoft Corporation.All rights reserved.
+// Licensed under the MIT License.
+
+using System;
+using System.Collections.Generic;
+using Microsoft.Bot.Schema.Teams;
+using Xunit;
+
+namespace Microsoft.Bot.Schema.Tests.Teams
+{
+    public class MeetingParticipantsAddedEventDetailsTests
+    {
+        [Fact]
+        public void MeetingParticipantsAddedEventDetailsInits()
+        {
+            // Arrange
+            var meetingId = "meetingId";
+            var meetingJoinUrl = new Uri("http://meetingJoinUrl");
+            var meetingTitle = "meetingTitle";
+            var meetingType = "meetingType";
+            var participant = new TeamsChannelAccount("id", "name", "givenName", "surname", "email", "userPrincipalName");
+            var participantsAdded = new List<TeamsChannelAccount>() { participant };
+
+            // Act
+            var meeting = new MeetingParticipantsAddedEventDetails(meetingId, meetingJoinUrl, meetingTitle, meetingType, participantsAdded);
+
+            // Assert
+            Assert.NotNull(meeting);
+            Assert.IsType<MeetingParticipantsAddedEventDetails>(meeting);
+            Assert.Equal(meetingId, meeting.Id);
+            Assert.Equal(meetingJoinUrl, meeting.JoinUrl);
+            Assert.Equal(meetingTitle, meeting.Title);
+            Assert.Equal(meetingType, meeting.MeetingType);
+            Assert.StrictEqual(participantsAdded, meeting.ParticipantsAdded);
+        }
+
+        [Fact]
+        public void MeetingParticipantsAddedEventDetailsInitsWithNoArgs()
+        {
+            // Act
+            var meeting = new MeetingParticipantsAddedEventDetails();
+
+            // Assert
+            Assert.NotNull(meeting);
+            Assert.IsType<MeetingParticipantsAddedEventDetails>(meeting);
+        }
+    }
+}
diff --git a/tests/Microsoft.Bot.Schema.Tests/Teams/MeetingParticipantsRemovedEventDetailsTests.cs b/tests/Microsoft.Bot.Schema.Tests/Teams/MeetingParticipantsRemovedEventDetailsTests.cs
new file mode 100644
index 0000000000..b5234b4305
--- /dev/null
+++ b/tests/Microsoft.Bot.Schema.Tests/Teams/MeetingParticipantsRemovedEventDetailsTests.cs
@@ -0,0 +1,48 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+using System;
+using System.Collections.Generic;
+using Microsoft.Bot.Schema.Teams;
+using Xunit;
+
+namespace Microsoft.Bot.Schema.Tests.Teams
+{
+    public class MeetingParticipantsRemovedEventDetailsTests
+    {
+        [Fact]
+        public void MeetingParticipantsRemovedEventDetailsInits()
+        {
+            // Arrange
+            var meetingId = "meetingId";
+            var meetingJoinUrl = new Uri("http://meetingJoinUrl");
+            var meetingTitle = "meetingTitle";
+            var meetingType = "meetingType";
+            var participant = new TeamsChannelAccount("id", "name", "givenName", "surname", "email", "userPrincipalName");
+            var participantsRemoved = new List<TeamsChannelAccount>() { participant };
+
+            // Act
+            var meeting = new MeetingParticipantsRemovedEventDetails(meetingId, meetingJoinUrl, meetingTitle, meetingType, participantsRemoved);
+
+            // Assert
+            Assert.NotNull(meeting);
+            Assert.IsType<MeetingParticipantsRemovedEventDetails>(meeting);
+            Assert.Equal(meetingId, meeting.Id);
+            Assert.Equal(meetingJoinUrl, meeting.JoinUrl);
+            Assert.Equal(meetingTitle, meeting.Title);
+            Assert.Equal(meetingType, meeting.MeetingType);
+            Assert.StrictEqual(participantsRemoved, meeting.ParticipantsRemoved);
+        }
+
+        [Fact]
+        public void MeetingParticipantsRemovedEventDetailsInitsWithNoArgs()
+        {
+            // Act
+            var meeting = new MeetingParticipantsRemovedEventDetails();
+
+            // Assert
+            Assert.NotNull(meeting);
+            Assert.IsType<MeetingParticipantsRemovedEventDetails>(meeting);
+        }
+    }
+}

From ed49b5ffeb8a1c81f0e3a0460f6d278bffdd4e94 Mon Sep 17 00:00:00 2001
From: JhontSouth <jhonatan.sandoval@southworks.com>
Date: Fri, 11 Aug 2023 12:33:51 -0500
Subject: [PATCH 3/5] modify participant meeting events models

---
 .../Teams/TeamsActivityHandler.cs             | 16 ++---
 .../MeetingParticipantsAddedEventDetails.cs   | 58 -------------------
 .../Teams/MeetingParticipantsEventDetails.cs  | 44 ++++++++++++++
 .../MeetingParticipantsRemovedEventDetails.cs | 58 -------------------
 .../Teams/TeamsMeetingMember.cs               | 42 ++++++++++++++
 .../Teams/UserMeetingDetails.cs               | 31 ++++++++++
 .../Teams/TeamsActivityHandlerTests.cs        | 48 +++++++--------
 ...etingParticipantsAddedEventDetailsTests.cs | 48 ---------------
 .../MeetingParticipantsEventDetailsTests.cs   | 41 +++++++++++++
 ...ingParticipantsRemovedEventDetailsTests.cs | 48 ---------------
 10 files changed, 191 insertions(+), 243 deletions(-)
 delete mode 100644 libraries/Microsoft.Bot.Schema/Teams/MeetingParticipantsAddedEventDetails.cs
 create mode 100644 libraries/Microsoft.Bot.Schema/Teams/MeetingParticipantsEventDetails.cs
 delete mode 100644 libraries/Microsoft.Bot.Schema/Teams/MeetingParticipantsRemovedEventDetails.cs
 create mode 100644 libraries/Microsoft.Bot.Schema/Teams/TeamsMeetingMember.cs
 create mode 100644 libraries/Microsoft.Bot.Schema/Teams/UserMeetingDetails.cs
 delete mode 100644 tests/Microsoft.Bot.Schema.Tests/Teams/MeetingParticipantsAddedEventDetailsTests.cs
 create mode 100644 tests/Microsoft.Bot.Schema.Tests/Teams/MeetingParticipantsEventDetailsTests.cs
 delete mode 100644 tests/Microsoft.Bot.Schema.Tests/Teams/MeetingParticipantsRemovedEventDetailsTests.cs

diff --git a/libraries/Microsoft.Bot.Builder/Teams/TeamsActivityHandler.cs b/libraries/Microsoft.Bot.Builder/Teams/TeamsActivityHandler.cs
index 2d929901d6..1701b7c793 100644
--- a/libraries/Microsoft.Bot.Builder/Teams/TeamsActivityHandler.cs
+++ b/libraries/Microsoft.Bot.Builder/Teams/TeamsActivityHandler.cs
@@ -809,10 +809,10 @@ protected override Task OnEventActivityAsync(ITurnContext<IEventActivity> turnCo
                         return OnTeamsMeetingStartAsync(JObject.FromObject(turnContext.Activity.Value).ToObject<MeetingStartEventDetails>(), turnContext, cancellationToken);
                     case "application/vnd.microsoft.meetingEnd":
                         return OnTeamsMeetingEndAsync(JObject.FromObject(turnContext.Activity.Value).ToObject<MeetingEndEventDetails>(), turnContext, cancellationToken);
-                    case "application/vnd.microsoft.meetingParticipantsAdded":
-                        return OnTeamsMeetingParticipantsAddedAsync(JObject.FromObject(turnContext.Activity.Value).ToObject<MeetingParticipantsAddedEventDetails>(), turnContext, cancellationToken);
-                    case "application/vnd.microsoft.meetingParticipantsRemoved":
-                        return OnTeamsMeetingParticipantsRemovedAsync(JObject.FromObject(turnContext.Activity.Value).ToObject<MeetingParticipantsRemovedEventDetails>(), turnContext, cancellationToken);
+                    case "application/vnd.microsoft.meetingParticipantJoin":
+                        return OnTeamsMeetingParticipantsJoinAsync(JObject.FromObject(turnContext.Activity.Value).ToObject<MeetingParticipantsEventDetails>(), turnContext, cancellationToken);
+                    case "application/vnd.microsoft.meetingParticipantLeave":
+                        return OnTeamsMeetingParticipantsLeaveAsync(JObject.FromObject(turnContext.Activity.Value).ToObject<MeetingParticipantsEventDetails>(), turnContext, cancellationToken);
                 }
             }
 
@@ -862,7 +862,7 @@ protected virtual Task OnTeamsReadReceiptAsync(ReadReceiptInfo readReceiptInfo,
         }
 
         /// <summary>
-        /// Invoked when a Teams Participants Added event activity is received from the connector.
+        /// Invoked when a Teams Participants Join event activity is received from the connector.
         /// Override this in a derived class to provide logic for when meeting participants are added.
         /// </summary>
         /// <param name="meeting">The details of the meeting.</param>
@@ -870,13 +870,13 @@ protected virtual Task OnTeamsReadReceiptAsync(ReadReceiptInfo readReceiptInfo,
         /// <param name="cancellationToken">A cancellation token that can be used by other objects
         /// or threads to receive notice of cancellation.</param>
         /// <returns>A task that represents the work queued to execute.</returns>
-        protected virtual Task OnTeamsMeetingParticipantsAddedAsync(MeetingParticipantsAddedEventDetails meeting, ITurnContext<IEventActivity> turnContext, CancellationToken cancellationToken)
+        protected virtual Task OnTeamsMeetingParticipantsJoinAsync(MeetingParticipantsEventDetails meeting, ITurnContext<IEventActivity> turnContext, CancellationToken cancellationToken)
         {
             return Task.CompletedTask;
         }
 
         /// <summary>
-        /// Invoked when a Teams Participants Removed event activity is received from the connector.
+        /// Invoked when a Teams Participants Leave event activity is received from the connector.
         /// Override this in a derived class to provide logic for when meeting participants are removed.
         /// </summary>
         /// <param name="meeting">The details of the meeting.</param>
@@ -884,7 +884,7 @@ protected virtual Task OnTeamsMeetingParticipantsAddedAsync(MeetingParticipantsA
         /// <param name="cancellationToken">A cancellation token that can be used by other objects
         /// or threads to receive notice of cancellation.</param>
         /// <returns>A task that represents the work queued to execute.</returns>
-        protected virtual Task OnTeamsMeetingParticipantsRemovedAsync(MeetingParticipantsRemovedEventDetails meeting, ITurnContext<IEventActivity> turnContext, CancellationToken cancellationToken)
+        protected virtual Task OnTeamsMeetingParticipantsLeaveAsync(MeetingParticipantsEventDetails meeting, ITurnContext<IEventActivity> turnContext, CancellationToken cancellationToken)
         {
             return Task.CompletedTask;
         }
diff --git a/libraries/Microsoft.Bot.Schema/Teams/MeetingParticipantsAddedEventDetails.cs b/libraries/Microsoft.Bot.Schema/Teams/MeetingParticipantsAddedEventDetails.cs
deleted file mode 100644
index 7bd75bb843..0000000000
--- a/libraries/Microsoft.Bot.Schema/Teams/MeetingParticipantsAddedEventDetails.cs
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) Microsoft Corporation. All rights reserved.
-// Licensed under the MIT License.
-
-using System;
-using System.Collections.Generic;
-using Newtonsoft.Json;
-
-namespace Microsoft.Bot.Schema.Teams
-{
-    /// <summary>
-    /// Specific details of a Teams meeting participants added event.
-    /// </summary>
-    public partial class MeetingParticipantsAddedEventDetails : MeetingEventDetails
-    {
-        /// <summary>
-        /// Initializes a new instance of the <see cref="MeetingParticipantsAddedEventDetails"/> class.
-        /// </summary>
-        public MeetingParticipantsAddedEventDetails()
-        {
-            CustomInit();
-        }
-
-        /// <summary>
-        /// Initializes a new instance of the <see cref="MeetingParticipantsAddedEventDetails"/> class.
-        /// </summary>
-        /// <param name="id">The meeting's Id, encoded as a BASE64 string.</param>
-        /// <param name="joinUrl">The URL used to join the meeting.</param>
-        /// <param name="title">The title of the meeting.</param>
-        /// <param name="meetingType">The meeting's type.</param>
-        /// <param name="participantsAdded">The added participant accounts.</param>
-        public MeetingParticipantsAddedEventDetails(
-            string id,
-            Uri joinUrl = null,
-            string title = null,
-            string meetingType = "Scheduled",
-            IList<TeamsChannelAccount> participantsAdded = default)
-            : base(id, joinUrl, title, meetingType)
-        {
-            ParticipantsAdded = participantsAdded;
-
-            CustomInit();
-        }
-
-        /// <summary>
-        /// Gets the added meeting participants.
-        /// </summary>
-        /// <value>
-        /// The added participant accounts.
-        /// </value>
-        [JsonProperty(PropertyName = "ParticipantsAdded")]
-        public IList<TeamsChannelAccount> ParticipantsAdded { get; private set; } = new List<TeamsChannelAccount>();
-
-        /// <summary>
-        /// An initialization method that performs custom operations like setting defaults.
-        /// </summary>
-        partial void CustomInit();
-    }
-}
diff --git a/libraries/Microsoft.Bot.Schema/Teams/MeetingParticipantsEventDetails.cs b/libraries/Microsoft.Bot.Schema/Teams/MeetingParticipantsEventDetails.cs
new file mode 100644
index 0000000000..cd0e143956
--- /dev/null
+++ b/libraries/Microsoft.Bot.Schema/Teams/MeetingParticipantsEventDetails.cs
@@ -0,0 +1,44 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+using System.Collections.Generic;
+using Newtonsoft.Json;
+
+namespace Microsoft.Bot.Schema.Teams
+{
+    /// <summary>
+    /// Data about the meeting participants.
+    /// </summary>
+    public partial class MeetingParticipantsEventDetails
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="MeetingParticipantsEventDetails"/> class.
+        /// </summary>
+        public MeetingParticipantsEventDetails()
+        {
+            CustomInit();
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="MeetingParticipantsEventDetails"/> class.
+        /// </summary>
+        /// <param name="members">The members involved in the meeting event.</param>
+        public MeetingParticipantsEventDetails(
+            IList<TeamsMeetingMember> members = default)
+        { 
+            Members = members;
+            CustomInit();
+        }
+     
+        /// <summary>
+        /// Gets the meeting participants info.
+        /// </summary>
+        /// <value>
+        /// The participant accounts info.
+        /// </value>
+        [JsonProperty(PropertyName = "Members")]
+        public IList<TeamsMeetingMember> Members { get; private set; } = new List<TeamsMeetingMember>();
+
+        partial void CustomInit();
+    }
+}
diff --git a/libraries/Microsoft.Bot.Schema/Teams/MeetingParticipantsRemovedEventDetails.cs b/libraries/Microsoft.Bot.Schema/Teams/MeetingParticipantsRemovedEventDetails.cs
deleted file mode 100644
index ab9216d12c..0000000000
--- a/libraries/Microsoft.Bot.Schema/Teams/MeetingParticipantsRemovedEventDetails.cs
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) Microsoft Corporation. All rights reserved.
-// Licensed under the MIT License.
-
-using System;
-using System.Collections.Generic;
-using Newtonsoft.Json;
-
-namespace Microsoft.Bot.Schema.Teams
-{
-    /// <summary>
-    /// Specific details of a Teams meeting participants removed event.
-    /// </summary>
-    public partial class MeetingParticipantsRemovedEventDetails : MeetingEventDetails
-    {
-        /// <summary>
-        /// Initializes a new instance of the <see cref="MeetingParticipantsRemovedEventDetails"/> class.
-        /// </summary>
-        public MeetingParticipantsRemovedEventDetails()
-        {
-            CustomInit();
-        }
-
-        /// <summary>
-        /// Initializes a new instance of the <see cref="MeetingParticipantsRemovedEventDetails"/> class.
-        /// </summary>
-        /// <param name="id">The meeting's Id, encoded as a BASE64 string.</param>
-        /// <param name="joinUrl">The URL used to join the meeting.</param>
-        /// <param name="title">The title of the meeting.</param>
-        /// <param name="meetingType">The meeting's type.</param>
-        /// <param name="participantsRemoved">The removed participant accounts.</param>
-        public MeetingParticipantsRemovedEventDetails(
-            string id,
-            Uri joinUrl = null,
-            string title = null,
-            string meetingType = "Scheduled",
-            IList<TeamsChannelAccount> participantsRemoved = default)
-            : base(id, joinUrl, title, meetingType)
-        {
-            ParticipantsRemoved = participantsRemoved;
-
-            CustomInit();
-        }
-
-        /// <summary>
-        /// Gets the removed meeting participants.
-        /// </summary>
-        /// <value>
-        /// The removed participant accounts.
-        /// </value>
-        [JsonProperty(PropertyName = "ParticipantsRemoved")]
-        public IList<TeamsChannelAccount> ParticipantsRemoved { get; private set; } = new List<TeamsChannelAccount>();
-
-        /// <summary>
-        /// An initialization method that performs custom operations like setting defaults.
-        /// </summary>
-        partial void CustomInit();
-    }
-}
diff --git a/libraries/Microsoft.Bot.Schema/Teams/TeamsMeetingMember.cs b/libraries/Microsoft.Bot.Schema/Teams/TeamsMeetingMember.cs
new file mode 100644
index 0000000000..25d94bcdf2
--- /dev/null
+++ b/libraries/Microsoft.Bot.Schema/Teams/TeamsMeetingMember.cs
@@ -0,0 +1,42 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+using Newtonsoft.Json;
+
+namespace Microsoft.Bot.Schema.Teams
+{
+    /// <summary>
+    /// Data about the joined meeting participants.
+    /// </summary>
+    public partial class TeamsMeetingMember
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="TeamsMeetingMember"/> class.
+        /// </summary>
+        /// <param name="user">The channel user data.</param>
+        /// <param name="meeting">The user meeting details.</param>
+        public TeamsMeetingMember(TeamsChannelAccount user, UserMeetingDetails meeting) 
+        {
+            User = user;
+            Meeting = meeting;
+        }
+
+        /// <summary>
+        /// Gets or sets the joined meeting participant.
+        /// </summary>
+        /// <value>
+        /// The joined participant account.
+        /// </value>
+        [JsonProperty(PropertyName = "user")]
+        public TeamsChannelAccount User { get; set; }
+
+        /// <summary>
+        /// Gets or sets the joined users meeting details.
+        /// </summary>
+        /// <value>
+        /// The joined users meeting details.
+        /// </value>
+        [JsonProperty(PropertyName = "Meeting")]
+        public UserMeetingDetails Meeting { get; set; }
+    }
+}
diff --git a/libraries/Microsoft.Bot.Schema/Teams/UserMeetingDetails.cs b/libraries/Microsoft.Bot.Schema/Teams/UserMeetingDetails.cs
new file mode 100644
index 0000000000..c3f30f06d5
--- /dev/null
+++ b/libraries/Microsoft.Bot.Schema/Teams/UserMeetingDetails.cs
@@ -0,0 +1,31 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+using Newtonsoft.Json;
+
+namespace Microsoft.Bot.Schema.Teams
+{
+    /// <summary>
+    /// Specific details of a user in a Teams meeting.
+    /// </summary>
+    public partial class UserMeetingDetails
+    {
+        /// <summary>
+        /// Gets or sets a value indicating whether the user is in the meeting.
+        /// </summary>
+        /// <value>
+        /// The user in meeting indicator.
+        /// </value>
+        [JsonProperty(PropertyName = "InMeeting")]
+        public bool InMeeting { get;  set; }
+
+        /// <summary>
+        /// Gets or sets the value of the user's role.
+        /// </summary>
+        /// <value>
+        /// The user's role.
+        /// </value>
+        [JsonProperty(PropertyName = "Role")]
+        public string Role { get; set; }
+    }
+}
diff --git a/tests/Microsoft.Bot.Builder.Tests/Teams/TeamsActivityHandlerTests.cs b/tests/Microsoft.Bot.Builder.Tests/Teams/TeamsActivityHandlerTests.cs
index 092209dfc3..adedab0f4d 100644
--- a/tests/Microsoft.Bot.Builder.Tests/Teams/TeamsActivityHandlerTests.cs
+++ b/tests/Microsoft.Bot.Builder.Tests/Teams/TeamsActivityHandlerTests.cs
@@ -314,7 +314,7 @@ public async Task TestConversationUpdateTeamsChannelRestored()
             // Arrange
             var activity = new Activity
             {
-                Type = ActivityTypes.ConversationUpdate,               
+                Type = ActivityTypes.ConversationUpdate,
                 ChannelData = new TeamsChannelData { EventType = "channelRestored" },
                 ChannelId = Channels.Msteams,
             };
@@ -333,7 +333,7 @@ public async Task TestConversationUpdateTeamsChannelRestored()
         [Fact]
         public async Task TestConversationUpdateTeamsTeamArchived()
         {
-          // Arrange
+            // Arrange
             var activity = new Activity
             {
                 Type = ActivityTypes.ConversationUpdate,
@@ -351,7 +351,7 @@ public async Task TestConversationUpdateTeamsTeamArchived()
             Assert.Equal("OnConversationUpdateActivityAsync", bot.Record[0]);
             Assert.Equal("OnTeamsTeamArchivedAsync", bot.Record[1]);
         }
-        
+
         [Fact]
         public async Task TestConversationUpdateTeamsTeamDeleted()
         {
@@ -1139,7 +1139,7 @@ void CaptureSend(Activity[] arg)
             // Act
             var bot = new TestActivityHandler();
             await ((IBot)bot).OnTurnAsync(turnContext);
-           
+
             // Assert
             Assert.Equal(2, bot.Record.Count);
             Assert.Equal("OnInvokeActivityAsync", bot.Record[0]);
@@ -1271,17 +1271,18 @@ void CaptureSend(Activity[] arg)
         }
 
         [Fact]
-        public async Task TestMeetingParticipantsAddedEvent()
+        public async Task TestMeetingParticipantsJoinEvent()
         {
             // Arrange
             var activity = new Activity
             {
                 ChannelId = Channels.Msteams,
                 Type = ActivityTypes.Event,
-                Name = "application/vnd.microsoft.meetingParticipantsAdded",
+                Name = "application/vnd.microsoft.meetingParticipantJoin",
                 Value = JObject.Parse(@"{
-                    ParticipantsAdded: [
-                        {Id: 'id', Name: 'name'}
+                    Members: [
+                        {User: {Id: 'id', Name: 'name'}, 
+                        Meeting: {Role: 'role', InMeeting: true}}
                     ]
                 }"),
             };
@@ -1301,24 +1302,25 @@ void CaptureSend(Activity[] arg)
             // Assert
             Assert.Equal(2, bot.Record.Count);
             Assert.Equal("OnEventActivityAsync", bot.Record[0]);
-            Assert.Equal("OnTeamsMeetingParticipantsAddedAsync", bot.Record[1]);
+            Assert.Equal("OnTeamsMeetingParticipantsJoinAsync", bot.Record[1]);
             Assert.NotNull(activitiesToSend);
             Assert.Single(activitiesToSend);
             Assert.Equal("id", activitiesToSend[0].Text);
         }
 
         [Fact]
-        public async Task TestMeetingParticipantsRemovedEvent()
+        public async Task TestMeetingParticipantsLeaveEvent()
         {
             // Arrange
             var activity = new Activity
             {
                 ChannelId = Channels.Msteams,
                 Type = ActivityTypes.Event,
-                Name = "application/vnd.microsoft.meetingParticipantsRemoved",
+                Name = "application/vnd.microsoft.meetingParticipantLeave",
                 Value = JObject.Parse(@"{
-                    ParticipantsRemoved: [
-                        {Id: 'id', Name: 'name'}
+                    Members: [
+                        {User: {Id: 'id', Name: 'name'}, 
+                        Meeting: {Role: 'role', InMeeting: false}}
                     ]
                 }"),
             };
@@ -1338,7 +1340,7 @@ void CaptureSend(Activity[] arg)
             // Assert
             Assert.Equal(2, bot.Record.Count);
             Assert.Equal("OnEventActivityAsync", bot.Record[0]);
-            Assert.Equal("OnTeamsMeetingParticipantsRemovedAsync", bot.Record[1]);
+            Assert.Equal("OnTeamsMeetingParticipantsLeaveAsync", bot.Record[1]);
             Assert.NotNull(activitiesToSend);
             Assert.Single(activitiesToSend);
             Assert.Equal("id", activitiesToSend[0].Text);
@@ -1536,7 +1538,7 @@ protected override Task OnTeamsChannelRenamedAsync(ChannelInfo channelInfo, Team
                 Record.Add(MethodBase.GetCurrentMethod().Name);
                 return base.OnTeamsChannelRenamedAsync(channelInfo, teamInfo, turnContext, cancellationToken);
             }
-          
+
             protected override Task OnTeamsChannelRestoredAsync(ChannelInfo channelInfo, TeamInfo teamInfo, ITurnContext<IConversationUpdateActivity> turnContext, CancellationToken cancellationToken)
             {
                 Record.Add(MethodBase.GetCurrentMethod().Name);
@@ -1559,7 +1561,7 @@ protected override Task OnTeamsTeamHardDeletedAsync(TeamInfo teamInfo, ITurnCont
             {
                 Record.Add(MethodBase.GetCurrentMethod().Name);
                 return base.OnTeamsTeamHardDeletedAsync(teamInfo, turnContext, cancellationToken);
-            }            
+            }
 
             protected override Task OnTeamsTeamRenamedAsync(TeamInfo teamInfo, ITurnContext<IConversationUpdateActivity> turnContext, CancellationToken cancellationToken)
             {
@@ -1610,18 +1612,18 @@ protected override Task OnTeamsReadReceiptAsync(ReadReceiptInfo readReceiptInfo,
                 return Task.CompletedTask;
             }
 
-            protected override Task OnTeamsMeetingParticipantsAddedAsync(MeetingParticipantsAddedEventDetails meeting, ITurnContext<IEventActivity> turnContext, CancellationToken cancellationToken)
+            protected override Task OnTeamsMeetingParticipantsJoinAsync(MeetingParticipantsEventDetails meeting, ITurnContext<IEventActivity> turnContext, CancellationToken cancellationToken)
             {
                 Record.Add(MethodBase.GetCurrentMethod().Name);
-                turnContext.SendActivityAsync(meeting.ParticipantsAdded[0].Id);
-                return base.OnTeamsMeetingParticipantsAddedAsync(meeting, turnContext, cancellationToken);
+                turnContext.SendActivityAsync(meeting.Members[0].User.Id);
+                return base.OnTeamsMeetingParticipantsJoinAsync(meeting, turnContext, cancellationToken);
             }
 
-            protected override Task OnTeamsMeetingParticipantsRemovedAsync(MeetingParticipantsRemovedEventDetails meeting, ITurnContext<IEventActivity> turnContext, CancellationToken cancellationToken)
+            protected override Task OnTeamsMeetingParticipantsLeaveAsync(MeetingParticipantsEventDetails meeting, ITurnContext<IEventActivity> turnContext, CancellationToken cancellationToken)
             {
                 Record.Add(MethodBase.GetCurrentMethod().Name);
-                turnContext.SendActivityAsync(meeting.ParticipantsRemoved[0].Id);
-                return base.OnTeamsMeetingParticipantsRemovedAsync(meeting, turnContext, cancellationToken);
+                turnContext.SendActivityAsync(meeting.Members[0].User.Id);
+                return base.OnTeamsMeetingParticipantsLeaveAsync(meeting, turnContext, cancellationToken);
             }
 
             // Invoke
@@ -1833,7 +1835,7 @@ private class RosterHttpMessageHandler : HttpMessageHandler
             protected override Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
             {
                 var response = new HttpResponseMessage(HttpStatusCode.OK);
-                
+
                 // GetMembers (Team)
                 if (request.RequestUri.PathAndQuery.EndsWith("team-id/members"))
                 {
diff --git a/tests/Microsoft.Bot.Schema.Tests/Teams/MeetingParticipantsAddedEventDetailsTests.cs b/tests/Microsoft.Bot.Schema.Tests/Teams/MeetingParticipantsAddedEventDetailsTests.cs
deleted file mode 100644
index 9063f78116..0000000000
--- a/tests/Microsoft.Bot.Schema.Tests/Teams/MeetingParticipantsAddedEventDetailsTests.cs
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright(c) Microsoft Corporation.All rights reserved.
-// Licensed under the MIT License.
-
-using System;
-using System.Collections.Generic;
-using Microsoft.Bot.Schema.Teams;
-using Xunit;
-
-namespace Microsoft.Bot.Schema.Tests.Teams
-{
-    public class MeetingParticipantsAddedEventDetailsTests
-    {
-        [Fact]
-        public void MeetingParticipantsAddedEventDetailsInits()
-        {
-            // Arrange
-            var meetingId = "meetingId";
-            var meetingJoinUrl = new Uri("http://meetingJoinUrl");
-            var meetingTitle = "meetingTitle";
-            var meetingType = "meetingType";
-            var participant = new TeamsChannelAccount("id", "name", "givenName", "surname", "email", "userPrincipalName");
-            var participantsAdded = new List<TeamsChannelAccount>() { participant };
-
-            // Act
-            var meeting = new MeetingParticipantsAddedEventDetails(meetingId, meetingJoinUrl, meetingTitle, meetingType, participantsAdded);
-
-            // Assert
-            Assert.NotNull(meeting);
-            Assert.IsType<MeetingParticipantsAddedEventDetails>(meeting);
-            Assert.Equal(meetingId, meeting.Id);
-            Assert.Equal(meetingJoinUrl, meeting.JoinUrl);
-            Assert.Equal(meetingTitle, meeting.Title);
-            Assert.Equal(meetingType, meeting.MeetingType);
-            Assert.StrictEqual(participantsAdded, meeting.ParticipantsAdded);
-        }
-
-        [Fact]
-        public void MeetingParticipantsAddedEventDetailsInitsWithNoArgs()
-        {
-            // Act
-            var meeting = new MeetingParticipantsAddedEventDetails();
-
-            // Assert
-            Assert.NotNull(meeting);
-            Assert.IsType<MeetingParticipantsAddedEventDetails>(meeting);
-        }
-    }
-}
diff --git a/tests/Microsoft.Bot.Schema.Tests/Teams/MeetingParticipantsEventDetailsTests.cs b/tests/Microsoft.Bot.Schema.Tests/Teams/MeetingParticipantsEventDetailsTests.cs
new file mode 100644
index 0000000000..5c9c6a0076
--- /dev/null
+++ b/tests/Microsoft.Bot.Schema.Tests/Teams/MeetingParticipantsEventDetailsTests.cs
@@ -0,0 +1,41 @@
+// Copyright(c) Microsoft Corporation.All rights reserved.
+// Licensed under the MIT License.
+
+using System.Collections.Generic;
+using Microsoft.Bot.Schema.Teams;
+using Xunit;
+
+namespace Microsoft.Bot.Schema.Tests.Teams
+{
+    public class MeetingParticipantsEventDetailsTests
+    {
+        [Fact]
+        public void MeetingParticipantsEventDetailsInits()
+        {
+            // Arrange
+            var user = new TeamsChannelAccount("id", "name", "givenName", "surname", "email", "userPrincipalName");
+            var member = new TeamsMeetingMember(user, new UserMeetingDetails { InMeeting = true, Role = "user" });
+            var eventMembers = new List<TeamsMeetingMember>() { member };
+
+            // Act
+            var meeting = new MeetingParticipantsEventDetails(eventMembers);
+
+            // Assert
+            Assert.NotNull(meeting);
+            Assert.IsType<MeetingParticipantsEventDetails>(meeting);
+
+            Assert.StrictEqual(eventMembers, meeting.Members);
+        }
+
+        [Fact]
+        public void MeetingParticipantsEventDetailsInitsWithNoArgs()
+        {
+            // Act
+            var meeting = new MeetingParticipantsEventDetails();
+
+            // Assert
+            Assert.NotNull(meeting);
+            Assert.IsType<MeetingParticipantsEventDetails>(meeting);
+        }
+    }
+}
diff --git a/tests/Microsoft.Bot.Schema.Tests/Teams/MeetingParticipantsRemovedEventDetailsTests.cs b/tests/Microsoft.Bot.Schema.Tests/Teams/MeetingParticipantsRemovedEventDetailsTests.cs
deleted file mode 100644
index b5234b4305..0000000000
--- a/tests/Microsoft.Bot.Schema.Tests/Teams/MeetingParticipantsRemovedEventDetailsTests.cs
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) Microsoft Corporation. All rights reserved.
-// Licensed under the MIT License.
-
-using System;
-using System.Collections.Generic;
-using Microsoft.Bot.Schema.Teams;
-using Xunit;
-
-namespace Microsoft.Bot.Schema.Tests.Teams
-{
-    public class MeetingParticipantsRemovedEventDetailsTests
-    {
-        [Fact]
-        public void MeetingParticipantsRemovedEventDetailsInits()
-        {
-            // Arrange
-            var meetingId = "meetingId";
-            var meetingJoinUrl = new Uri("http://meetingJoinUrl");
-            var meetingTitle = "meetingTitle";
-            var meetingType = "meetingType";
-            var participant = new TeamsChannelAccount("id", "name", "givenName", "surname", "email", "userPrincipalName");
-            var participantsRemoved = new List<TeamsChannelAccount>() { participant };
-
-            // Act
-            var meeting = new MeetingParticipantsRemovedEventDetails(meetingId, meetingJoinUrl, meetingTitle, meetingType, participantsRemoved);
-
-            // Assert
-            Assert.NotNull(meeting);
-            Assert.IsType<MeetingParticipantsRemovedEventDetails>(meeting);
-            Assert.Equal(meetingId, meeting.Id);
-            Assert.Equal(meetingJoinUrl, meeting.JoinUrl);
-            Assert.Equal(meetingTitle, meeting.Title);
-            Assert.Equal(meetingType, meeting.MeetingType);
-            Assert.StrictEqual(participantsRemoved, meeting.ParticipantsRemoved);
-        }
-
-        [Fact]
-        public void MeetingParticipantsRemovedEventDetailsInitsWithNoArgs()
-        {
-            // Act
-            var meeting = new MeetingParticipantsRemovedEventDetails();
-
-            // Assert
-            Assert.NotNull(meeting);
-            Assert.IsType<MeetingParticipantsRemovedEventDetails>(meeting);
-        }
-    }
-}

From d041084a2ebdd7d20ee41639c39cc577e64d10a8 Mon Sep 17 00:00:00 2001
From: JhontSouth <jhonatan.sandoval@southworks.com>
Date: Mon, 14 Aug 2023 10:48:32 -0500
Subject: [PATCH 4/5] clean participants models

---
 .../Microsoft.Bot.Schema/Teams/TeamsMeetingMember.cs      | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/libraries/Microsoft.Bot.Schema/Teams/TeamsMeetingMember.cs b/libraries/Microsoft.Bot.Schema/Teams/TeamsMeetingMember.cs
index 25d94bcdf2..eddca61cc6 100644
--- a/libraries/Microsoft.Bot.Schema/Teams/TeamsMeetingMember.cs
+++ b/libraries/Microsoft.Bot.Schema/Teams/TeamsMeetingMember.cs
@@ -6,7 +6,7 @@
 namespace Microsoft.Bot.Schema.Teams
 {
     /// <summary>
-    /// Data about the joined meeting participants.
+    /// Data about the meeting participants.
     /// </summary>
     public partial class TeamsMeetingMember
     {
@@ -22,7 +22,7 @@ public TeamsMeetingMember(TeamsChannelAccount user, UserMeetingDetails meeting)
         }
 
         /// <summary>
-        /// Gets or sets the joined meeting participant.
+        /// Gets or sets the meeting participant.
         /// </summary>
         /// <value>
         /// The joined participant account.
@@ -31,10 +31,10 @@ public TeamsMeetingMember(TeamsChannelAccount user, UserMeetingDetails meeting)
         public TeamsChannelAccount User { get; set; }
 
         /// <summary>
-        /// Gets or sets the joined users meeting details.
+        /// Gets or sets the user meeting details.
         /// </summary>
         /// <value>
-        /// The joined users meeting details.
+        /// The users meeting details.
         /// </value>
         [JsonProperty(PropertyName = "Meeting")]
         public UserMeetingDetails Meeting { get; set; }

From 0798135c2013da81a6baa41b02407d34e98b0a31 Mon Sep 17 00:00:00 2001
From: JhontSouth <jhonatan.sandoval@southworks.com>
Date: Mon, 14 Aug 2023 11:05:14 -0500
Subject: [PATCH 5/5] formar members object

---
 .../Teams/TeamsActivityHandlerTests.cs        | 28 ++++++++++++++++---
 1 file changed, 24 insertions(+), 4 deletions(-)

diff --git a/tests/Microsoft.Bot.Builder.Tests/Teams/TeamsActivityHandlerTests.cs b/tests/Microsoft.Bot.Builder.Tests/Teams/TeamsActivityHandlerTests.cs
index adedab0f4d..4cc3263efb 100644
--- a/tests/Microsoft.Bot.Builder.Tests/Teams/TeamsActivityHandlerTests.cs
+++ b/tests/Microsoft.Bot.Builder.Tests/Teams/TeamsActivityHandlerTests.cs
@@ -1281,8 +1281,18 @@ public async Task TestMeetingParticipantsJoinEvent()
                 Name = "application/vnd.microsoft.meetingParticipantJoin",
                 Value = JObject.Parse(@"{
                     Members: [
-                        {User: {Id: 'id', Name: 'name'}, 
-                        Meeting: {Role: 'role', InMeeting: true}}
+                        {
+                            User: 
+                            {
+                                Id: 'id', 
+                                Name: 'name'
+                            }, 
+                            Meeting: 
+                            {
+                                Role: 'role', 
+                                InMeeting: true
+                            }
+                        }
                     ]
                 }"),
             };
@@ -1319,8 +1329,18 @@ public async Task TestMeetingParticipantsLeaveEvent()
                 Name = "application/vnd.microsoft.meetingParticipantLeave",
                 Value = JObject.Parse(@"{
                     Members: [
-                        {User: {Id: 'id', Name: 'name'}, 
-                        Meeting: {Role: 'role', InMeeting: false}}
+                        {
+                            User: 
+                            {
+                                Id: 'id', 
+                                Name: 'name'
+                            }, 
+                            Meeting: 
+                            {
+                                Role: 'role', 
+                                InMeeting: true
+                            }
+                        }
                     ]
                 }"),
             };