Assume that x is a char variable has been declared and already given a value. Write an expression whose value is true if and only if x is a upper-case letter.
- laravel/ui[v3.2.0, ..., 3.x-dev] require illuminate/console ^8.0 -> found illuminate/console[v8.0.0, ..., 8.x-dev] but these were not loaded, likely because it conflicts with another require.