code: def _check_treatment_feature(treatment_feature):
      pass
  
imports: import numpy
  import pandas
  import pytest
  from econml.solutions.causal_analysis._causal_analysis import CausalAnalysis
  from raiutils.exceptions import UserConfigValidationException
  from raiutils.models import ModelTask
  from responsibleai._interfaces import CausalConfig, CausalData, CausalPolicy, CausalPolicyGains, CausalPolicyTreeInternal, CausalPolicyTreeLeaf
  from responsibleai._internal.constants import CausalManagerKeys, ListProperties, ManagerNames
  from responsibleai._tools.causal.causal_result import CausalResult
label_desc: Use image node_id 10 for calling a global function with example usage: _check_treatment_feature(treatment_feature) without return types