Add more Message convenience methods (#233)

* Added convenience methods
message.reply_animation
message.reply_audio
message.reply_cached_media
message.reply_chat_action
message.reply_contact
message.reply_document
message.reply_game
message.reply_inline_bot_result
message.reply_location
message.reply_media_group
message.reply_photo
message.reply_poll
message.reply_sticker
message.reply_venue
message.reply_video
message.reply_video_note
message.reply_voice
message.edit_caption
message.edit_media
message.edit_reply_markup
message.pin

fixed send_document docstrings while doing so
uniformed function declaration of send_poll

* Update style and small fixes

pyrogram/client/methods/messages/send_document.py

@@ -60,7 +60,7 @@ class SendDocument(BaseClient):
                 pass an HTTP URL as a string for Telegram to get a file from the Internet, or
                 pass a file path as string to upload a new file that exists on your local machine.
 
-            thumb (``str``):
+            thumb (``str``, *optional*):
                 Thumbnail of the file sent.
                 The thumbnail should be in JPEG format and less than 200 KB in size.
                 A thumbnail's width and height should not exceed 90 pixels.

pyrogram/client/methods/messages/send_poll.py

@@ -24,20 +24,20 @@ from pyrogram.client.ext import BaseClient
 
 
 class SendPoll(BaseClient):
-    def send_poll \
-            (self,
-             chat_id: Union[int, str],
-             question: str,
-             options: List[str],
-             disable_notification: bool = None,
-             reply_to_message_id: int = None,
-             reply_markup: Union[
-                 "pyrogram.InlineKeyboardMarkup",
-                 "pyrogram.ReplyKeyboardMarkup",
-                 "pyrogram.ReplyKeyboardRemove",
-                 "pyrogram.ForceReply"
-             ] = None
-             ) -> "pyrogram.Message":
+    def send_poll(
+        self,
+        chat_id: Union[int, str],
+        question: str,
+        options: List[str],
+        disable_notification: bool = None,
+        reply_to_message_id: int = None,
+        reply_markup: Union[
+            "pyrogram.InlineKeyboardMarkup",
+            "pyrogram.ReplyKeyboardMarkup",
+            "pyrogram.ReplyKeyboardRemove",
+            "pyrogram.ForceReply"
+        ] = None
+    ) -> "pyrogram.Message":
         """Use this method to send a new poll.
 
         Args: