isNone            517 modules/core/include/opencv2/core/persistence.hpp     CV_WRAP bool isNone() const;
isNone           5633 modules/core/src/persistence.cpp         t == SEQ ? (size_t)node->data.seq->total : (size_t)!isNone();
isNone            465 modules/ts/src/ts_perf.cpp         if (valnode.isNone())
isNone            521 modules/ts/src/ts_perf.cpp         if (valnode.isNone())
isNone            592 modules/ts/src/ts_perf.cpp     if(n.isNone())