def _item_to_blob(iterator, item):
    """Convert a JSON blob to the native object.

    .. note::

        This assumes that the ``bucket`` attribute has been
        added to the iterator after being created.

    :type iterator: :class:`~google.api_core.page_iterator.Iterator`
    :param iterator: The iterator that has retrieved the item.

    :type item: dict
    :param item: An item to be converted to a blob.

    :rtype: :class:`.Blob`
    :returns: The next blob in the page.
    """
    name = item.get("name")
    blob = Blob(name, bucket=iterator.bucket)
    blob._set_properties(item)
    return blob