def map_index_val(index_val):
        """Xform index_val so that it can be stored/queried."""
        if index_val is None:
            return DynamoMappings.NONE_VAL

        index_val = str(index_val)
        if not index_val:
            return DynamoMappings.EMPTY_STR_VAL

        return index_val
def map_index_val ( index_val ) : if index_val is None : return DynamoMappings . NONE_VAL index_val = str ( index_val ) if not index_val : return DynamoMappings . EMPTY_STR_VAL return index_val
Xform index_val so that it can be stored/queried.