vk_api Bot | Функция для отправки сообщений с клавиатурой и без

import vk_api
from vk_api.longpoll import VkLongPoll, VkEventType
from vk_api.keyboard import VkKeyboard, VkKeyboardColor

session = vk_api.VkApi(token="TOKEN")


def send_message(user_id, message_content, keyboard=None):
    post = {
        "user_id": user_id,
        "message": message_content,
        "random_id": 0
    }

    if keyboard != None:
        post["keyboard"] = keyboard.get_keyboard()
    else:
        post = post

    session.method("messages.send", post)


for event in VkLongPoll(session).listen():
    if event.type == VkEventType.MESSAGE_NEW and event.to_me:
        user_id = event.user_id,
        text = event.text.lower()

        keyboard = VkKeyboard(one_time=True)
        keyboard.add_button("Button", color=VkKeyboardColor.NEGATIVE)

        # Example
        send_message(user_id, "Something message without keyboard...")
        send_message(user_id, "Something message with keyboard...", keyboard)