def keys(self):
        return self._source.keys()
Adds a single counter path to the paths attribute.  Normally
dataset/ETHPy150Open nigelsmall/py2neo/py2neo/database/__init__.py/Cursor.keys--crossover with--dataset/ETHPy150Open eBay/restcommander/play-1.2.4/python/Lib/site-packages/win32/lib/win32pdhquery.py/BaseQuery.addcounter