def ref_alias(self, alias):
        self.alias_refcount[alias] += 1
Calculate distance of CAPseq peaks to nearest non-coding transcript TSS
dataset/ETHPy150Open CollabQ/CollabQ/vendor/django/db/models/sql/query.py/BaseQuery.ref_alias--crossover with--dataset/ETHPy150Open CGATOxford/cgat/obsolete/pipeline_proj007.py/getCapseqNoncodingTSSDistance