[{"check": "unused-state", "impact": "Informational", "confidence": "High", "description": "A.unused (tests/unused_state.sol#4) is never used in B\n", "elements": [{"type": "variable", "name": "unused", "source_mapping": {"start": 44, "length": 14, "filename": "tests/unused_state.sol", "lines": [4]}}]}]