def incr(self, key, delta=1, version=None):
        value = self.get(key, version=version)
        if value is None:
            raise ValueError("Key '%s' not found" % key)
        new_value = value + delta
        self.set(key, new_value, version=version)
        return new_value
Normalize declaration arguments
dataset/ETHPy150Open django/django/django/core/cache/backends/base.py/BaseCache.incr--crossover with--dataset/ETHPy150Open nlloyd/SubliminalCollaborator/libs/zope/interface/declarations.py/_normalizeargs