fix missing argument

4 jobs for master in 48 minutes and 39 seconds (queued for 1 second)
Name Stage Failure
failed
unittest_python_3.7 Unittest

-- Docs: https://docs.pytest.org/en/stable/warnings.html
=========================== short test summary info ============================
FAILED tests/test_pipeline.py::TestPipeline::test_pipeline_fit_sign0 - Assert...
FAILED tests/test_remove_duplicates.py::TestChemicalChecker::test_remove_only_duplicates
====== 2 failed, 29 passed, 13 skipped, 18 warnings in 214.02s (0:03:34) =======
make: Leaving directory '/test/package'
make: *** [Makefile:42: test] Error 1
ERROR: Job failed: exit code 1