Add answer_callback_query.

telebot/__init__.py

@@ -509,6 +509,18 @@ class TeleBot:
         return apihelper.answer_inline_query(self.token, inline_query_id, results, cache_time, is_personal, next_offset,
                                              switch_pm_text, switch_pm_parameter)
 
+    def answer_callback_query(self, callback_query_id, text=None, show_alert=None):
+        """
+        Use this method to send answers to callback queries sent from inline keyboards. The answer will be displayed to
+        the user as a notification at the top of the chat screen or as an alert.
+        :param callback_query_id:
+        :param text:
+        :param show_alert:
+        :return:
+        """
+        return apihelper.answer_callback_query(self.token, callback_query_id, text, show_alert)
+
+
     def register_for_reply(self, message, callback):
         """
         Registers a callback function to be notified when a reply to `message` arrives.

telebot/apihelper.py

@@ -389,6 +389,16 @@ def answer_inline_query(token, inline_query_id, results, cache_time=None, is_per
     return _make_request(token, method_url, params=payload, method='post')
 
 
+def answer_callback_query(token, callback_query_id, text=None, show_alert=None):
+    method_url = 'answerCallbackQuery'
+    payload = {'callback_query_id': callback_query_id}
+    if text:
+        payload['text'] = text
+    if show_alert:
+        payload['show_alert'] = show_alert
+    return _make_request(token, method_url, params=payload, method='post')
+
+
 def _convert_inline_results(results):
     ret = ''
     for r in results: