human
Complete the below
def _scalar_property(fieldname):

    ''''Create a property descriptor around the :class:`_PropertyMixin` helpers.'
    '''

Can you provide a the Python program you requested?
assistant
#Here is the Python program you requested.
    def _getter(self):
        'Scalar    property    getter.'
        return self._properties.get(fieldname)
    def _setter(self, value):
        'Scalar    property    setter.'
        self._patch_property(fieldname, value)
    return property(_getter, _setter)