pyro get call + title

from pyrogram.raw.functions.channels import GetFullChannel
from pyrogram.raw.functions.phone import EditGroupCallTitle
from pyrogram.raw.functions.phone import GetGroupCall

async def get_input_call(chat_id):
  return (
    await app.invoke(GetFullChannel(channel=await app.resolve_peer(chat_id)))
  ).full_chat.call

async def get_call_title(chat_id):
  input_call = await get_input_call(chat_id)
  if not input_call: return
  return (await app.invoke(GetGroupCall(call=input_call, limit=0))).call.title

async def edit_call_title(chat_id, title):
  input_call = await get_input_call(chat_id)
  if not input_call: return
  return await app.invoke(EditGroupCallTitle(call=input_call, title=title))