class_docstr: Test functionality of SkorchDoctor using a simple model
class_docstr_tok: ["Test","functionality","of","SkorchDoctor","using","a","simple","model"]
code: def test_plot_activations_passed_axes_2d(self, plt, doctor):
      _, axes = plt.subplots(2, 2)
      axes_after = doctor.plot_activations(
          axes=axes,
          step=0,
          match_fn=lambda name: "lin" in name,
          histtype="bar",
          lw=3,
          bins=np.arange(10),
          density=False,
          figsize=(1, 2),
          align="left",
      )
      assert axes_after is axes
  
imports: import itertools
  from unittest import mock
  import numpy
  import pytest
  import torch
  from torch import nn
label_desc: Use image node_id 33 for calling the TestSkorchDoctorSimple obj's underlying member method code with example usage: obj.test_plot_activations_passed_axes_2d(plt, doctor) without return types