PyrogramBotBase/plugins/commands/command.py

from pyrogram import filters
from pyrogram.types import Message

from classes.pyroclient import PyroClient


@PyroClient.on_message(
    ~filters.scheduled & filters.private & filters.command(["start"], prefixes=["/"])  # type: ignore
)
async def command_start(app: PyroClient, message: Message):
    await message.reply_text(
        app._("start", "messages", locale=message.from_user.language_code)
    )