How to exclude events from subgraphs ?

[CharlesOural]

Hey everyone,

I'm playing around with subgraphs. Say I have two graphs, A and B, with A having a node within it that calls B.
I want to stream events from B to the node but I don't want them to be streamed to graph A as well.
However, currently when looking at events of graph A, it also gets ALL the events that are going on in graph B.
Here's pseudocode to illustrate it:

# Streaming top level graph
async for event in self.graph_a.astream_events(config=RunnableConfig()):
  # Here we should only get events of nodes in graph A BUT we also get events from graph B
  ...

# ... 

# This is a node that runs within graph A and that streams graph B inside it
def node_in_graph_a():
  ...
  # Stream graph B inside the node
  async for event in self.graph_b.astream_events(config=RunnableConfig()):
    # Here I want to get only events from the graph B, which is running within a node in graph A
    ...

I hope this makes sense, I'm happy to provide more details if that's helpful but tl;dr is:
How can I stream a graph within a graph and not have the outer graph receive the events streamed by the inner graph ?
Thanks