Update ChatList() to allow for more filtering

chat.go

@@ -203,13 +203,19 @@ func (c Chat) Delete(messageID int) (ChatAPI, error) {
 }
 
 // ChatList returns a list of all conversations.
-func (k *Keybase) ChatList(topicType ...string) (ChatAPI, error) {
+// You can pass a Channel to use as a filter here, but you'll probably want to
+// leave the TopicName empty.
+func (k *Keybase) ChatList(opts ...Channel) (ChatAPI, error) {
 	m := ChatAPI{
 		Params: &params{},
 	}
 
-	if len(topicType) > 0 {
-		m.Params.Options.TopicType = topicType[0]
+	if len(opts) > 0 {
+		m.Params.Options.Name = opts[0].Name
+		m.Params.Options.Public = opts[0].Public
+		m.Params.Options.MembersType = opts[0].MembersType
+		m.Params.Options.TopicType = opts[0].TopicType
+		m.Params.Options.TopicName = opts[0].TopicName
 	}
 	m.Method = "list"
 

types.go

@@ -240,7 +240,12 @@ type options struct {
 	FlipConversationID string      `json:"flip_conversation_id,omitempty"`
 	MsgID              int         `json:"msg_id,omitempty"`
 	GameID             string      `json:"game_id,omitempty"`
+
+	Name        string `json:"name"`
+	Public      bool   `json:"public,omitempty"`
+	MembersType string `json:"members_type,omitempty"`
 	TopicType   string `json:"topic_type,omitempty"`
+	TopicName   string `json:"topic_name,omitempty"`
 }
 type params struct {
 	Options options `json:"options"`