Basic usage.swift

struct CustomView<Content: View>: View {
    let content: () -> Content

    init(@ViewBuilder content: @escaping () -> Content) {
        self.content = content
    }

    var body: some View {
        content()
    }
}

// Calling Custom View
CustomView {
    VStack {
        Text("Hello")
        Text("World")
    }
}