src/vs/workbench/contrib/notebook/common/services/notebookSimpleWorker.ts/CellSequence/getCellHash
class CellSequence:	getCellHash(cell: ICellDto2) {
		const source = Array.isArray(cell.source) ? cell.source.join('\n') : cell.source;
		const hashVal = hash([hash(source), cell.metadata]);
		return hashVal;
	}