new 5.3 function names

added the new function names (the previous names are still working) from 5.3 and some other small changes

telebot/apihelper.py

@@ -93,6 +93,7 @@ def _make_request(token, method_name, method='get', params=None, files=None):
             # Long polling hangs for given time. Read timeout should be greater that long_polling_timeout
             read_timeout = max(params['timeout'] + 10, read_timeout)
 
+    params = params or None #set params to None if empty
 
     result = None
     if RETRY_ON_ERROR:
@@ -335,6 +336,12 @@ def get_chat_members_count(token, chat_id):
     return _make_request(token, method_url, params=payload)
 
 
+def get_chat_member_count(token, chat_id):
+    method_url = r'getChatMemberCount'
+    payload = {'chat_id': chat_id}
+    return _make_request(token, method_url, params=payload)
+
+
 def set_sticker_set_thumb(token, name, user_id, thumb):
     method_url = r'setStickerSetThumb'
     payload = {'name': name, 'user_id': user_id}
@@ -861,6 +868,18 @@ def kick_chat_member(token, chat_id, user_id, until_date=None, revoke_messages=N
     return _make_request(token, method_url, params=payload, method='post')
 
 
+def ban_chat_member(token, chat_id, user_id, until_date=None, revoke_messages=None):
+    method_url = 'banChatMember'
+    payload = {'chat_id': chat_id, 'user_id': user_id}
+    if isinstance(until_date, datetime):
+        payload['until_date'] = until_date.timestamp()
+    else:
+        payload['until_date'] = until_date
+    if revoke_messages is not None:
+        payload['revoke_messages'] = revoke_messages
+    return _make_request(token, method_url, params=payload, method='post')
+
+
 def unban_chat_member(token, chat_id, user_id, only_if_banned):
     method_url = 'unbanChatMember'
     payload = {'chat_id': chat_id, 'user_id': user_id}
@@ -1027,32 +1046,32 @@ def set_chat_title(token, chat_id, title):
     return _make_request(token, method_url, params=payload, method='post')
 
 
-def get_my_commands(token, scope, language_code):
+def get_my_commands(token, scope=None, language_code=None):
     method_url = r'getMyCommands'
     payload = {}
-    if scope is not None:
+    if scope:
         payload['scope'] = scope.to_json()
-    if language_code is not None:
+    if language_code:
         payload['language_code'] = language_code
-    return _make_request(token, method_url, params=payload, method='post')
+    return _make_request(token, method_url, params=payload)
 
 
-def set_my_commands(token, commands, scope, language_code):
+def set_my_commands(token, commands, scope=None, language_code=None):
     method_url = r'setMyCommands'
     payload = {'commands': _convert_list_json_serializable(commands)}
-    if scope is not None:
+    if scope:
         payload['scope'] = scope.to_json()
-    if language_code is not None:
+    if language_code:
         payload['language_code'] = language_code
     return _make_request(token, method_url, params=payload, method='post')
 
 
-def delete_my_commands(token, scope, language_code):
+def delete_my_commands(token, scope=None, language_code=None):
     method_url = r'deleteMyCommands'
     payload = {}
-    if scope is not None:
+    if scope: 
         payload['scope'] = scope.to_json()
-    if language_code is not None:
+    if language_code: 
         payload['language_code'] = language_code
     return _make_request(token, method_url, params=payload, method='post')