We can easily assert the variable is described, that is, the necessary input binding was truly supplied by the calling context: For an illustration of a member variable that is not described at compile time, a member variable possessing an @Enter directive: You could have a look at several illustrations https://propertyingurugram.in/dwarka-expressway-indias-first-8-lane-highway-to-be-completed-by-april-2024-infrastructural-boost-positive-homebuyer-sentiment-drive-robust-housing-demand/