new fields for Chat

types.go

@@ -81,6 +81,12 @@ type GroupChat struct {
 	Title string `json:"title"`
 }
 
+// ChatPhoto represents a chat photo.
+type ChatPhoto struct {
+	SmallFileID string `json:"small_file_id"`
+	BigFileID   string `json:"big_file_id"`
+}
+
 // Chat contains information about the place a message was sent.
 type Chat struct {
 	ID                  int64  `json:"id"`
@@ -90,6 +96,8 @@ type Chat struct {
 	FirstName           string `json:"first_name"`                     // optional
 	LastName            string `json:"last_name"`                      // optional
 	AllMembersAreAdmins bool   `json:"all_members_are_administrators"` // optional
+	Description         string `json:"description,omitempty"`          // optional
+	InviteLink          string `json:"invite_link,omitempty"`
 }
 
 // IsPrivate returns if the Chat is a private conversation.