def METHOD_NAME(self, texture_id: int, filename: str) -> None:
    """
    Add a texture and the relative file name.
    :param texture_id: Texture identifier.
    :type texture_id: int
    :param filename: Path to the image file.
    :type filename: str
    """
    self.texture_files[texture_id] = {
        "texture_id": texture_id,
        "filename": filename,
    }