Adding additional node in the node-hub

[haixuanTao]

In order to simplify testing with a terminal, I have added couple of simple nodes in the node-hub.

To use:

cd examples/terminal-dataflow
dora build dataflow.yml
dora start dataflow.yml

# Terminal A
terminal-print

# Terminal B
pyarrow-sender

Note that there might be issues with stopping the dataflow and you might need to use dora destroy

Video example

Screencast.from.2024-08-09.12-41-17.webm

[heyong4725]

@haixuanTao Can you make dynamic node example that the node can handle both input and output. Basically it is similar to LLM ReAct pattern: User <---> LLM, the User take keyboard input, send to LLM as query prompts, and LLM send back the inference result back to the User and print out the result

[haixuanTao]

Sure thing!

[haixuanTao]

Screencast.from.2024-08-13.11-41-16.webm

So I have added:

• a new node called terminal-input that can both send and receive data.
• a node called dora-echo that is just echoing the data received and should showcase how to both send and receive data from the same node.

I'm having some technical issues with using LLM due to VPN issues and i'm afraid it might be not reproducible but the dora-echo node should be enough to generalize on LLM nodes.

[Hennzau]

Hi! Looks good to me. Be careful, you left some audio files in the commit.