code: def add_flag_values(self, entry, flag):
          ''' Adds flag value to applicable compounds '''
          if flag in self.flags:
              self.flags[flag].append(entryf add_flag_values(self, entry, flag):
          ''' Adds flag value to applicable compounds '''
          if flag in self.flags:
              self.flags[flag].append(entry)
docs: Adds flag value to applicable compounds