def METHOD_NAME(self, items):
    """
    Inserts the new substrate matches into the substrates collection
    Args:
        items ([[dict]]): a list of list of thermo dictionaries to update
    """
    items = list(filter(None, items))
    if len(items) > 0:
        self.logger.info("Updating {} substrate matches".format(len(items)))
        self.substrates.update(docs=items)
    else:
        self.logger.info("No items to update")