How to implement sending a file when clicking on the aiogram button?

Question

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How to implement sending a file when clicking on the Inline aiogram button?

Answer 1

I answer the question. I already found the answer myself.

@dp.callback_query_handler(text="moreinf")
async def moreinf(call: types.CallbackQuery):
    await call.message.reply_document(open('users.txt', 'rb'))

What have we done? When you click on the button, the bot sends a pre-prepared file to the user.