def _string_substr(self, start, length=None):
    op = _ops.Substring(self, start, length)
    return op.to_expr()
Enable/disable auto-balancing by the maintenance daemon
dataset/ETHPy150Open cloudera/ibis/ibis/expr/api.py/_string_substr--crossover with--dataset/ETHPy150Open ganeti/ganeti/lib/config/__init__.py/ConfigWriter.SetMaintdBalance