code: def test_contains_mlflow_requirement():
      assert _contains_mlflow_requirement(["mlflow"])
      assert _contains_mlflow_requirement(["mlflow==1.2.3"])
      assert _contains_mlflow_requirement(["mlflow", "foo"])
      assert _contains_mlflow_requirement(["mlflow-skinny"])
      assert not _contains_mlflow_requirement([])
      assert not _contains_mlflow_requirement(["foo"])
  
imports: import os
  import pytest
  import yaml
  from mlflow.exceptions import MlflowException
  from mlflow.utils.environment import _contains_mlflow_requirement, _deduplicate_requirements, _get_pip_deps, _get_pip_requirement_specifier, _is_mlflow_requirement, _is_pip_deps, _mlflow_conda_env, _overwrite_pip_deps, _parse_pip_requirements, _process_conda_env, _process_pip_requirements, _validate_env_arguments
  from tests.helper_functions import _mlflow_major_version_string
label_desc: Use image node_id 17 for calling a global function with example usage: test_contains_mlflow_requirement() without return types