Add autogenerated docs for types and methods

docs/api/methods/delete_chat_photo.md

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+# deleteChatPhoto
+
+## Description
+
+Use this method to delete a chat photo. Photos can't be changed for private chats. The bot must be an administrator in the chat for this to work and must have the appropriate admin rights. Returns True on success.
+
+
+## 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) |
+
+
+
+## Response
+
+Type: `#!python3 bool`
+
+Description: Returns True on success.
+
+
+## Usage
+
+
+### As bot method bot
+
+```python3
+result: bool = await bot.delete_chat_photo(...)
+```
+
+### Method as object
+
+Imports:
+
+- `from aiogram.types import DeleteChatPhoto`
+- `from aiogram.api.types import DeleteChatPhoto`
+- `from aiogram.api.types.delete_chat_photo import DeleteChatPhoto`
+
+#### As reply into Webhook
+```python3
+return DeleteChatPhoto(...)
+```
+
+#### With specific bot
+```python3
+result: bool = await bot.emit(DeleteChatPhoto(...))
+```
+
+#### In handlers with current bot
+```python3
+result: bool = await DeleteChatPhoto(...)
+```
+
+
+## Related pages:
+
+- [Official documentation](https://core.telegram.org/bots/api#deletechatphoto)