Make an iterator using the SCAN command so that the client doesn't
        need to remember the cursor position.

        ``match`` allows for filtering the keys by pattern

        ``count`` allows for hint the minimum number of returns

def scan_iter(self, match=None, count=None):
        """
        Make an iterator using the SCAN command so that the client doesn't
        need to remember the cursor position.

        ``match`` allows for filtering the keys by pattern

        ``count`` allows for hint the minimum number of returns
        """
        cursor = '0'
        while cursor != 0:
            cursor, data = self.scan(cursor=cursor, match=match, count=count)
            for item in data:
                yield item