Upper bound estimate of record size.

def estimate_size_in_bytes(cls, magic, compression_type, key, value):
        """ Upper bound estimate of record size.
        """
        assert magic in [0, 1], "Not supported magic"
        # In case of compression we may need another overhead for inner msg
        if compression_type:
            return (
                cls.LOG_OVERHEAD + cls.record_overhead(magic) +
                cls.record_size(magic, key, value)
            )
        return cls.LOG_OVERHEAD + cls.record_size(magic, key, value)