`# Demo 4 - Read part of a WFDB annotation file into a wfdb.Annotation object, and plot the samples
annotation = wfdb.rdann('sample-data/100', 'atr', sampfrom=100000, sampto=110000)
annotation.fs = 360
wfdb.plot_wfdb(annotation=annotation, time_units='minutes')`

`# Can also read the same file hosted on PhysioNet 
annotation2 = wfdb.rdann('100', 'atr', sampfrom=100000, sampto=110000, pn_dir='mitdb')`

TypeError: 'AxesSubplot' object is not subscriptable
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
/tmp/ipykernel_226822/286435021.py in <module>
      2 annotation = wfdb.rdann('sample-data/100', 'atr', sampfrom=100000, sampto=110000)
      3 annotation.fs = 360
----> 4 wfdb.plot_wfdb(annotation=annotation, time_units='minutes')
      5 
      6 # Can also read the same file hosted on PhysioNet

.venv/lib/python3.8/site-packages/wfdb/plot/plot.py in plot_wfdb(record, annotation, plot_sym, time_units, title, sig_style, ann_style, ecg_grids, figsize, return_fig)
    640                                                               plot_sym=plot_sym)
    641 
--> 642     return plot_items(signal=signal, ann_samp=ann_samp, ann_sym=ann_sym, fs=fs,
    643                       time_units=time_units, ylabel=ylabel,
    644                       title=(title or record_name),

.venv/lib/python3.8/site-packages/wfdb/plot/plot.py in plot_items(signal, ann_samp, ann_sym, fs, time_units, sig_name, sig_units, xlabel, ylabel, title, sig_style, ann_style, ecg_grids, figsize, sharex, sharey, return_fig, return_fig_axes)
    120 
    121     if ann_samp is not None:
--> 122         plot_annotation(ann_samp, n_annot, ann_sym, signal, n_sig, fs,
    123                         time_units, ann_style, axes)
    124 

.venv/lib/python3.8/site-packages/wfdb/plot/plot.py in plot_annotation(ann_samp, n_annot, ann_sym, signal, n_sig, fs, time_units, ann_style, axes)
    351                                 'the "rdann" function?')
    352 
--> 353             axes[ch].plot(ann_samp[ch] / downsample_factor, y, ann_style[ch])
    354 
    355             # Plot the annotation symbols if any

TypeError: 'AxesSubplot' object is not subscriptable