docs: def parse_chanjo_sexcheck(handle: TextIO):
      """Parse Chanjo sex-check output."""
      samples = csv.DictReader(handle, delimiter='\t')
      for sample in samples:
          return {
              'predicted_sex': sample['sex'],
              'x_coverage': float(sample['#X_coverage']),
              'y_coverage': float(sample['Y_coverage']),
          }