def METHOD_NAME(self, row):
    """Returns child BaseProjectTreeItem on given row.
    Args:
        row (int): Row of child to return
    Returns:
        BaseProjectTreeItem: item on given row or None if it does not exist
    """
    try:
        item = self._children[row]
    except IndexError:
        logging.error("[%s] has no child on row %s", self.name, row)
        return None
    return item