How to use the nixio.DataType function in nixio

if isinstance(v, pq.Quantity):
            if len(v.shape):
                section.create_property(name, tuple(v.magnitude))
            else:
                section.create_property(name, v.magnitude.item())
            section.props[name].unit = str(v.dimensionality)
        elif isinstance(v, datetime_types):
            value, annotype = dt_to_nix(v)
            prop = section.create_property(name, value)
            prop.definition = annotype
        elif isinstance(v, string_types):
            if len(v):
                section.create_property(name, v)
            else:
                section.create_property(name, nix.DataType.String)
        elif isinstance(v, bytes):
            section.create_property(name, v.decode())
        elif isinstance(v, Iterable):
            values = []
            unit = None
            definition = None
            if len(v) == 0:
                # NIX supports empty properties but dtype must be specified
                # Defaulting to String and using definition to signify empty
                # iterable as opposed to empty string
                values = nix.DataType.String
                definition = EMPTYANNOTATION
            elif hasattr(v, "ndim") and v.ndim == 0:
                values = v.item()
                if isinstance(v, pq.Quantity):
                    unit = str(v.dimensionality)