test

var InitialData = []User{
	{
		ID:        1,
		Name:      "Alice",
		Age:       20,
		GroupID:   sql.Null[int]{Valid: true, V: 1},
		CreatedAt: time.Now(),
	},
	{
		ID:        2,
		Name:      "Bob",
		Age:       21,
		GroupID:   sql.Null[int]{Valid: true, V: 1},
		CreatedAt: time.Now(),
	},
	{
		ID:        3,
		Name:      "Charlie",
		Age:       22,
		GroupID:   sql.Null[int]{},
		CreatedAt: time.Now(),
	},
	{
		ID:        4,
		Name:      "David",
		Age:       23,
		GroupID:   sql.Null[int]{Valid: true, V: 2},
		CreatedAt: time.Now(),
	},
}