Convenience wrapper around `TelegramClient$send_message()` that sends a file
and resolves futures/promises.
Usage
send_file(client, entity, file, ...)
Arguments
- client
TelegramClient instance.
- entity
Target entity (username, id, or TLObject).
- file
File path or file-like object.
- ...
Additional arguments passed to `TelegramClient$send_message()`
(e.g., `message`, `force_document`, `attributes`, `thumb`, `parse_mode`).
Value
The sent message object (or Updates result).
