Error handling. Vendoring

Signed-off-by: Ettore Dreucci <ettore.dreucci@gmail.com>

vendor/gopkg.in/tucnak/telebot.v2/chat.go

@@ -0,0 +1,58 @@
+package telebot
+
+import "strconv"
+
+// User object represents a Telegram user, bot
+type User struct {
+	ID int `json:"id"`
+
+	FirstName string `json:"first_name"`
+	LastName  string `json:"last_name"`
+	Username  string `json:"username"`
+}
+
+// Recipient returns user ID (see Recipient interface).
+func (u *User) Recipient() string {
+	return strconv.Itoa(u.ID)
+}
+
+// Chat object represents a Telegram user, bot, group or a channel.
+type Chat struct {
+	ID int64 `json:"id"`
+
+	// See telebot.ChatType and consts.
+	Type ChatType `json:"type"`
+
+	// Won't be there for ChatPrivate.
+	Title string `json:"title"`
+
+	FirstName string `json:"first_name"`
+	LastName  string `json:"last_name"`
+	Username  string `json:"username"`
+}
+
+// Recipient returns chat ID (see Recipient interface).
+func (c *Chat) Recipient() string {
+	if c.Type == ChatChannel {
+		return "@" + c.Username
+	}
+	return strconv.FormatInt(c.ID, 10)
+}
+
+// ChatMember object represents information about a single chat member.
+type ChatMember struct {
+	Rights
+
+	User *User        `json:"user"`
+	Role MemberStatus `json:"status"`
+
+	// Date when restrictions will be lifted for the user, unix time.
+	//
+	// If user is restricted for more than 366 days or less than
+	// 30 seconds from the current time, they are considered to be
+	// restricted forever.
+	//
+	// Use tb.Forever().
+	//
+	RestrictedUntil int64 `json:"until_date,omitempty"`
+}