langflow Bug: Error building Component Astra DB Graph

Bug Description

Astra DB Graph component is not working in Langflow (both running locally & the browser application). I've verified I have the packages installed that it is referencing and that they are up to date (as far as I can tell). I even tried force reinstalling all packages (langflow, langchain, langchain_astradb, etc.).

From doing some digging and modifying the component code to print out the errors (see below), it looks like the component is trying to call AstraDBGraphVectorStore. However, from digging through the package itself + AstraDB documentation, I can't find reference to this anywhere within the langchain_astradb package. This could be a red herring, given I'm a nooby programmer, but only thing I could think of.

Error building Component Astra DB Graph: 

Could not import langchain Astra DB integration package. Please install it with `pip install langchain-astradb`.

Traceback (most recent call last):
  File "<string>", line 227, in build_vector_store
ImportError: cannot import name 'AstraDBGraphVectorStore' from 'langchain_astradb' (/Users/samuelharper/Documents/Python/.venv/lib/python3.12/site-packages/langchain_astradb/__init__.py). Did you mean: 'AstraDBVectorStore'?

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/Users/samuelharper/Documents/Python/.venv/lib/python3.12/site-packages/langflow/graph/vertex/base.py", line 635, in _build_results
    result = await initialize.loading.get_instance_results(
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/samuelharper/Documents/Python/.venv/lib/python3.12/site-packages/langflow/interface/initialize/loading.py", line 72, in get_instance_results
    return await build_component(params=custom_params, custom_component=custom_component)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/samuelharper/Documents/Python/.venv/lib/python3.12/site-packages/langflow/interface/initialize/loading.py", line 152, in build_component
    build_results, artifacts = await custom_component.build_results()
                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/samuelharper/Documents/Python/.venv/lib/python3.12/site-packages/langflow/custom/custom_component/component.py", line 1064, in build_results
    return await self._build_with_tracing()
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/samuelharper/Documents/Python/.venv/lib/python3.12/site-packages/langflow/custom/custom_component/component.py", line 1046, in _build_with_tracing
    results, artifacts = await self._build_results()
                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/samuelharper/Documents/Python/.venv/lib/python3.12/site-packages/langflow/custom/custom_component/component.py", line 1091, in _build_results
    result = await self._get_output_result(output)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/samuelharper/Documents/Python/.venv/lib/python3.12/site-packages/langflow/custom/custom_component/component.py", line 1166, in _get_output_result
    result = await method() if inspect.iscoroutinefunction(method) else await asyncio.to_thread(method)
                                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/samuelharper/.local/share/uv/python/cpython-3.12.11-macos-aarch64-none/lib/python3.12/asyncio/threads.py", line 25, in to_thread
    return await loop.run_in_executor(None, func_call)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/samuelharper/.local/share/uv/python/cpython-3.12.11-macos-aarch64-none/lib/python3.12/concurrent/futures/thread.py", line 59, in run
    result = self.fn(*self.args, **self.kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "<string>", line 333, in search_documents
  File "/Users/samuelharper/Documents/Python/.venv/lib/python3.12/site-packages/langflow/base/vectorstores/model.py", line 33, in check_cached
    result = f(self, *args, **kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^
  File "<string>", line 234, in build_vector_store
ImportError: Could not import langchain Astra DB integration package. Please install it with `pip install langchain-astradb`.