How to make the VK bot send messages with a button?

Question

Python

This screenshot was taken by me, but the message was sent using a bot application, not using python code.

How can I send a message with a button using a VK bot? Normal buttons are at the bottom (below the message input line), but I have seen that many bots can send a message in which there will be a fully working button. How to implement it?

Python 3.7
Windows 10
Vk_api

Answer 1

The vk.messages.send() method has a keyboard argument. Its input is json text.
for example

vk.messages.send(message="hello world!", keyboard='{"buttons":}'

In order not to write it manually, kind people came up with this generator.