def METHOD_NAME(pv_obj):
    """
    Get the size of a pv object
    Args:
        pv_obj (dict): A dictionary that represent the pv object
    Returns:
        int: The size of the pv object
    """
    storage_size = pv_obj.get("spec").get("capacity").get("storage")
    return convert_device_size(storage_size, "GB")