code: def get_config_var_entry(self, index):
          
  
          if index == 0 or index > len(self.config_database.entries):
              return [Error.INVALID_ARRAY_KEY, 0, 0, 0, b'\0'*8, 0, 0]
  
          entry = self.config_database.entries[index - 1]
          if not entry.valid:
              return [ConfigDatabaseError.OBSOLETE_ENTRY, 0, 0, 0, b'\0'*8, 0, 0]
  
          offset = sum(x.data_space() for x in self.config_database.entries[:index - 1])
          return [Error.NO_ERROR, self.config_database.ENTRY_MAGIC, offset, entry.data_space(), entry.target.encode(), 0xFF, 0]
docs: Get the metadata from the selected config variable entry.