code: def test_error_if_tol_not_between_0_and_1():
      with pytest.raises(ValueError):
          RareLabelEncoder(tol=5)
  
file_path: feature_engine/tests/test_encoding/test_rare_label_encoder.py
imports: import pandas
  import pytest
  from feature_engine.encoding import RareLabelEncoder
label_desc: Use image node_id 3 for calling a global function with example usage: test_error_if_tol_not_between_0_and_1() without return types