code: async def addFeedData(self, name, items, seqn=None):
          '''
          Add data using a feed/parser function.
  
          Args:
              name (str): The name of the feed record format.
              items (list): A list of items to ingest.
              seqn ((str,int)): An (iden, offs) tuple for this feed chunk.
  
          Returns:
              (int): The next expected offset (or None) if seqn is None.
          '''
          async with await self.snap() as snap:
              snap.strict = False
              return await snap.addFeedData(name, items, seqn=seqnync def addFeedData(self, name, items, seqn=None):
          '''
          Add data using a feed/parser function.
  
          Args:
              name (str): The name of the feed record format.
              items (list): A list of items to ingest.
              seqn ((str,int)): An (iden, offs) tuple for this feed chunk.
  
          Returns:
              (int): The next expected offset (or None) if seqn is None.
          '''
          async with await self.snap() as snap:
              snap.strict = False
              return await snap.addFeedData(name, items, seqn=seqn)
docs: Add data using a feed/parser function.
  
          Args:
              name (str): The name of the feed record format.
              items (list): A list of items to ingest.
              seqn ((str,int)): An (iden, offs) tuple for this feed chunk.
  
          Returns:
              (int): The next expected offset (or None) if seqn is None.