code: def _conditions():
      return ["c0", "c0", "c0", "c1", "c1", "c1", "c2", "c2", "c2"]
  
file_path: nilearn/nilearn/glm/tests/_testing.py
imports: import numpy
  import pandas
  from nilearn.conftest import _rng
label_desc: Use image node_id 1 for calling a global function with example usage: _conditions() and returns: list