code: def base_params():
      """Basic set of parameters for testing."""
      return dict(
          edge_threshold=0.38, title="threshold=0.38", node_size=10
      )
  
imports: import os
  import matplotlib.pyplot
  import numpy
  import pytest
  from matplotlib.patches import FancyArrow
  from scipy import sparse
  from nilearn.plotting import plot_connectome
label_desc: Use image node_id 3 for calling a global function with example usage: base_params() and returns: dict