def expected_block(action_id, text, expected_value):
    """
    Default input button from app.slack.com/block-kit-builder

    https://api.slack.com/reference/block-kit/block-elements#button
    """

    return {
        "type": "actions",
        "elements": [
            {
                "type": "button",
                "text": {"type": "plain_text", "text": text, "emoji": True},
                "action_id": action_id,
            }
        ],
        "value": expected_value,
    }