@abstractmethod
    def evaluate_aggregate(self, tuple_iterator, scheme):
Checks if the zip exists and the contents of the pom and jar are valid.
dataset/ETHPy150Open uwescience/raco/raco/expression/aggregate.py/BuiltinAggregateExpression.evaluate_aggregate--crossover with--dataset/ETHPy150Open databricks/spark-package-cmd-tool/python/tests.py/check_zip