code: def namedb_offset_count_predicate( offset=None, count=None ):
      
      offset_count_query = ""
      offset_count_args = ()
  
      if count is not None:
          offset_count_query += "LIMIT ? "
          offset_count_args += (count,)
  
      if count is not None and offset is not None:
          offset_count_query += "OFFSET ? "
          offset_count_args += (offset,)
  
      return (offset_count_query, offset_count_args)
docs: Make an offset/count predicate
      even if offset=None or count=None.
  
      Return (query, args)