/// <summary>
/// Initializes a new instance of the Activity class.
/// </summary>
public Activity(string type = default(string), string id = default(string), DateTime?timestamp = default(DateTime?), DateTime?localTimestamp = default(DateTime?), string serviceUrl = default(string), string channelId = default(string), ChannelAccount from = default(ChannelAccount), ConversationAccount conversation = default(ConversationAccount), ChannelAccount recipient = default(ChannelAccount), string textFormat = default(string), string attachmentLayout = default(string), IList <ChannelAccount> membersAdded = default(IList <ChannelAccount>), IList <ChannelAccount> membersRemoved = default(IList <ChannelAccount>), string topicName = default(string), bool?historyDisclosed = default(bool?), string locale = default(string), string text = default(string), string speak = default(string), string inputHint = default(string), string summary = default(string), SuggestedActions suggestedActions = default(SuggestedActions), IList <Attachment> attachments = default(IList <Attachment>), IList <Entity> entities = default(IList <Entity>), object channelData = default(object), string action = default(string), string replyToId = default(string), object value = default(object), string name = default(string), ConversationReference relatesTo = default(ConversationReference), string code = default(string)) : this()
{
Type = type;
Id = id;
Timestamp = timestamp;
LocalTimestamp = localTimestamp;
ServiceUrl = serviceUrl;
ChannelId = channelId;
From = from;
Conversation = conversation;
Recipient = recipient;
TextFormat = textFormat;
AttachmentLayout = attachmentLayout;
TopicName = topicName;
HistoryDisclosed = historyDisclosed;
Locale = locale;
Text = text;
Speak = speak;
InputHint = inputHint;
Summary = summary;
SuggestedActions = suggestedActions;
ChannelData = channelData;
Action = action;
ReplyToId = replyToId;
Value = value;
Name = name;
RelatesTo = relatesTo;
Code = code;
MembersAdded = membersAdded ?? new List <ChannelAccount>();
MembersRemoved = membersRemoved ?? new List <ChannelAccount>();
Attachments = attachments ?? new List <Attachment>();
Entities = entities ?? new List <Entity>();
}