code: def test_path_not_unique(path, expected):
      assert path_not_unique(path) is expected
  
imports: import copy
  import pytest
  from mlflow.entities import Metric, Param, RunTag
  from mlflow.exceptions import MlflowException
  from mlflow.protos.databricks_pb2 import INVALID_PARAMETER_VALUE, ErrorCode
  from mlflow.utils.validation import _is_numeric, _validate_batch_log_data, _validate_batch_log_limits, _validate_db_type_string, _validate_experiment_artifact_location, _validate_experiment_name, _validate_metric_name, _validate_model_alias_name, _validate_param_name, _validate_run_id, _validate_tag_name, path_not_unique
label_desc: Use image node_id 1 for calling a global function with example usage: test_path_not_unique(path, expected) without return types