@staticmethod
def _type_from_store_name(store_name):
    """
        Return the type of an item that is stored in a given data store
        Parameters
        ----------
        store_name : str
            The name of the data store

        Returns
        -------
        str
            The item type
        """
    if not store_name or not isinstance(store_name, str):
        return None
    store_map = {'sqTrendSeriesStore': 'Signal', 'sqTrendCapsuleSetStore':
        'Condition', 'sqTrendScalarStore': 'Scalar', 'sqTrendMetricStore':
        'Metric', 'sqTrendTableStore': 'Table'}
    if store_name not in store_map:
        return None
    return store_map[store_name]
