Add autogenerated docs for types and methods

docs/api/methods/send_chat_action.md

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+# sendChatAction
+
+## Description
+
+Use this method when you need to tell the user that something is happening on the bot's side. The status is set for 5 seconds or less (when a message arrives from your bot, Telegram clients clear its typing status). Returns True on success.
+
+Example: The ImageBot needs some time to process a request and upload the image. Instead of sending a text message along the lines of 'Retrieving image, please wait…', the bot may use sendChatAction with action = upload_photo. The user will see a 'sending photo' status for the bot.
+
+We only recommend using this method when a response from the bot will take a noticeable amount of time to arrive.
+
+
+## Arguments
+
+| Name | Type | Description |
+| - | - | - |
+| `chat_id` | `#!python3 Union[int, str]` | Unique identifier for the target chat or username of the target channel (in the format @channelusername) |
+| `action` | `#!python3 str` | Type of action to broadcast. Choose one, depending on what the user is about to receive: typing for text messages, upload_photo for photos, record_video or upload_video for videos, record_audio or upload_audio for audio files, upload_document for general files, find_location for location data, record_video_note or upload_video_note for video notes. |
+
+
+
+## Response
+
+Type: `#!python3 bool`
+
+Description: Returns True on success.
+
+
+## Usage
+
+
+### As bot method bot
+
+```python3
+result: bool = await bot.send_chat_action(...)
+```
+
+### Method as object
+
+Imports:
+
+- `from aiogram.types import SendChatAction`
+- `from aiogram.api.types import SendChatAction`
+- `from aiogram.api.types.send_chat_action import SendChatAction`
+
+#### As reply into Webhook
+```python3
+return SendChatAction(...)
+```
+
+#### With specific bot
+```python3
+result: bool = await bot.emit(SendChatAction(...))
+```
+
+#### In handlers with current bot
+```python3
+result: bool = await SendChatAction(...)
+```
+
+
+## Related pages:
+
+- [Official documentation](https://core.telegram.org/bots/api#sendchataction)