code: def test_inferer_init():
      assert (
          Inferer(method="dot").method.__name__ == "PlainScalarProduct"
      )
  
file_path: recommenders/tests/unit/recommenders/models/test_geoimc.py
imports: import collections
  import pytest
  import numpy
  from scipy.sparse import csr_matrix
label_desc: Use image node_id 6 for calling a global function with example usage: test_inferer_init() without return types