def _b64_vision_images(path: str):
    for filename in os.listdir(path):
        if filename.startswith("cv-") and filename.endswith(".png"):
            cv_dict.append({
              "type": "image_url",
              "image_url": {
                "url": f"data:image/png;base64,{_encode_image(os.path.join(path, filename))}"
              }
            })
    return cv_dict