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'column1': {'min': 0, 'max': 100}, 'column2': {'allowed_values': ['A', 'B', 'C']}, 'column3': {'not_null': True} } # Perform data validation for column, rule in rules.items(): if 'min' in rule: invalid_data = data[data[column] < rule['min']] if not invalid_data.empty: print(f"Validation failed for