TypeError: 'method' object is not subscriptable

[stolltho]

Hi there.
I wanted to run your Jupyter NB w/ your test data, however, executing

annotate_adducts(graphs, db_out, ppm, lib_adducts)
df_out = summary(df, db_out)
print(df_out)

resulted in the following error:

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-4-5b48a2fbb04c> in <module>
----> 1 annotate_adducts(graphs, db_out, ppm, lib_adducts)
      2 df_out = summary(df, db_out)
      3 print(df_out)

c:\ProgramData\Anaconda3\lib\site-packages\beamspy\annotation.py in annotate_adducts(source, db_out, ppm, lib, add)
    394     if isinstance(source, list) and len(source) > 0 and isinstance(source[0], nx.classes.digraph.DiGraph):
    395         for i, graph in enumerate(source):
--> 396             for assignment in _annotate_pairs_from_graph(graph, lib_pairs=lib_pairs, ppm=ppm, charge=None):
    397                 cursor.execute("""INSERT OR REPLACE into adduct_pairs (peak_id_a, peak_id_b, 
    398                                label_a, label_b,

c:\ProgramData\Anaconda3\lib\site-packages\beamspy\annotation.py in _annotate_pairs_from_graph(G, ppm, lib_pairs, charge)
    167     for e in G.edges(data=True):
    168 
--> 169         mz_x = G.nodes[e[0]]["mz"]
    170         mz_y = G.nodes[e[1]]["mz"]
    171 

TypeError: 'method' object is not subscriptable

Help is appreciated.

Cheers,
Thomas