core/homeassistant/components/telegram_bot/icons.json

{
  "services": {
    "send_message": {
      "service": "mdi:send"
    },
    "send_photo": {
      "service": "mdi:camera"
    },
    "send_sticker": {
      "service": "mdi:sticker"
    },
    "send_animation": {
      "service": "mdi:animation"
    },
    "send_video": {
      "service": "mdi:video"
    },
    "send_voice": {
      "service": "mdi:microphone"
    },
    "send_document": {
      "service": "mdi:file-document"
    },
    "send_location": {
      "service": "mdi:map-marker"
    },
    "send_poll": {
      "service": "mdi:poll"
    },
    "edit_message": {
      "service": "mdi:pencil"
    },
    "edit_caption": {
      "service": "mdi:pencil"
    },
    "edit_replymarkup": {
      "service": "mdi:pencil"
    },
    "answer_callback_query": {
      "service": "mdi:check"
    },
    "delete_message": {
      "service": "mdi:delete"
    }
  }
}