Manually set random_id in requests

Getting the response message relies on this ID.
Because requests are now immutable, and resolve sets the random_id,
the method to obtain the response message would lack the random_id,
as the original request is not touched by resolve.

telethon/_client/messages.py

@@ -4,6 +4,7 @@ import time
 import typing
 import warnings
 import dataclasses
+import os
 
 from .._misc import helpers, utils, requestiter, hints
 from ..types import _custom
@@ -486,7 +487,8 @@ async def send_message(
             entity, message._file._media, reply_to_msg_id=reply_to, message=message._text,
             entities=message._fmt_entities, reply_markup=message._reply_markup, silent=message._silent,
             schedule_date=schedule, clear_draft=clear_draft,
-            background=background, noforwards=noforwards, send_as=send_as
+            background=background, noforwards=noforwards, send_as=send_as,
+            random_id=int.from_bytes(os.urandom(8), 'big', signed=True),
         )
     else:
         request = _tl.fn.messages.SendMessage(
@@ -501,7 +503,8 @@ async def send_message(
             reply_markup=_custom.button.build_reply_markup(buttons),
             schedule_date=schedule,
             noforwards=noforwards,
-            send_as=send_as
+            send_as=send_as,
+            random_id=int.from_bytes(os.urandom(8), 'big', signed=True),
         )
 
     result = await self(request)
@@ -574,7 +577,8 @@ async def forward_messages(
             with_my_score=with_my_score,
             schedule_date=schedule,
             noforwards=noforwards,
-            send_as=send_as
+            send_as=send_as,
+            random_id=[int.from_bytes(os.urandom(8), 'big', signed=True) for _ in chunk],
         )
         result = await self(req)
         sent.extend(self._get_response_message(req, result, entity))

telethon/types/_custom/inlineresult.py

@@ -1,5 +1,6 @@
 from ... import _tl
 from ..._misc import utils
+import os
 
 
 class InlineResult:
@@ -162,7 +163,8 @@ class InlineResult:
             clear_draft=clear_draft,
             hide_via=hide_via,
             reply_to_msg_id=reply_id,
-            send_as=send_as
+            send_as=send_as,
+            random_id=int.from_bytes(os.urandom(8), 'big', signed=True),
         )
         return self._client._get_response_message(
             req, await self._client(req), entity)

telethon/types/_custom/messagebutton.py

@@ -115,7 +115,8 @@ class MessageButton:
             return await self._client.get_entity(self.button.user_id)
         elif isinstance(self.button, _tl.KeyboardButtonSwitchInline):
             return await self._client(_tl.fn.messages.StartBot(
-                bot=self._bot, peer=self._chat, start_param=self.button.query
+                bot=self._bot, peer=self._chat, start_param=self.button.query,
+                random_id=int.from_bytes(os.urandom(8), 'big', signed=True),
             ))
         elif isinstance(self.button, _tl.KeyboardButtonUrl):
             return self.button.url