human
Can you provide a the Python program you requested given the following:
Complete the below
def _resp_etag_property():

    ''''Set and retrieve Response.etag
    This may be broken for etag use cases other than Swift\'s.
    Quotes strings when assigned and unquotes when read, for compatibility
    with webob.'
    '''
assistant
#Here is the Python program you requested.
    def getter(self):
        etag = self.headers.get('etag', None)
        if etag:
            etag = etag.replace('"', '')
        return etag
    def setter(self, value):
        if (value is None):
            self.headers['etag'] = None
        else:
            self.headers['etag'] = ('"%s"' % value)
    return property(getter, setter, doc='Retrieve    and    set    the    response    Etag    header')