Using llamaindex nodes, how to integrate with pinecone?

I am trying to use “nodes” from llamaindex with pinecone as in this notebook:

https://gpt-index.readthedocs.io/en/latest/examples/node_postprocessor/MetadataReplacementDemo.html

Since they seem to produce better results as they have relationship between nodes.

I have not seen any guides that use llamaindex nodes with pinecone.

Any ideas suggestions on how to implement this?