Downloading: s3://natera-rnd-pltf-dev-nextflow-scratch-01/work/ad/c87deaefe547de5b3c2fe0e1450d8a/.command.sh
  Downloading: s3://natera-rnd-pltf-dev-nextflow-scratch-01/work/a3/4bec8ec203d6779fc9992ae2ccbdad/norm_reference/sex_calls.csv
  Downloading: s3://natera-rnd-pltf-dev-nextflow-scratch-01/work/ad/c87deaefe547de5b3c2fe0e1450d8a/.command.run
  Downloading: s3://natera-rnd-pltf-dev-nextflow-scratch-01/work/53/dcd5086c4d0f6f686bac5e1e632861/1029_0W2-N1-BDNA-1_B23KGCJLT4_1_probes.tsv.gz
  Downloading: s3://natera-rnd-pltf-dev-nextflow-scratch-01/work/a3/4bec8ec203d6779fc9992ae2ccbdad/norm_reference/batch_reference.parquet
==> STAGING COMPLETE (5 inputs)

Loaded 472,386 probes for 1029_0W2-N1-BDNA-1_B23KGCJLT4_1
  Sex homology mask: 1494 probes set to mask=2
  5-feature GAM: R²=0.9416
Traceback (most recent call last):
  File "/usr/local/bin/normalize_sample.py", line 187, in <module>
    normalize_one_sample(
  File "/usr/local/bin/normalize_sample.py", line 121, in normalize_one_sample
    os.makedirs(os.path.dirname(output_path), exist_ok=True)
  File "<frozen os>", line 225, in makedirs
FileNotFoundError: [Errno 2] No such file or directory: ''