## uni.scanCode(options?) @scancode <!-- UTSAPIJSON.scanCode.description --> <!-- UTSAPIJSON.scanCode.compatibility --> <!-- UTSAPIJSON.scanCode.param --> <!-- UTSAPIJSON.scanCode.returnValue --> <!-- UTSAPIJSON.scanCode.example --> <!-- UTSAPIJSON.scanCode.tutorial --> <!-- UTSAPIJSON.scanCode.example --> <!-- UTSAPIJSON.general_type.name --> <!-- UTSAPIJSON.general_type.param -->