def test_allow_blank(self):
        field = serializers.CharField(allow_blank=True)
        output = field.run_validation('')
        assert output == ''
Gather BAM file GC bias stats using Picard
dataset/ETHPy150Open tomchristie/django-rest-framework/tests/test_fields.py/TestEmpty.test_allow_blank--crossover with--dataset/ETHPy150Open CGATOxford/cgat/obsolete/pipeline_proj012_chipseq.py/buildPicardGCStats