// see all parameters in https://core.telegram.org/bots/api#sendphoto
photo: "https://cataas.com/cat", // it is picture!
reply_markup: { inline_keyboard: [
// open the link on button pressing
{ text: "button1", url: "http://example.com" },
// run command /onButton2 on button pressing
{ text: "button2", callback_data: "/onButton2" }
// https://core.telegram.org/bots/api#inlinekeyboardbutton
{ text: "button3", callback_data: "/onButton3" }