// Example of a custom result builder in Swift
        import SwiftUI

        // Define a custom result builder
        @resultBuilder
        struct HTMLBuilder {
            static func buildBlock(_ components: String...) -> String {
                return components.joined()
            }

            static func buildExpression(_ expression: String) -> String {
                return expression
            }

            static func buildExpression(_ expression: Int) -> String {
                return "\(expression)"
            }
        }

        // Use the custom result builder to create HTML content
        func createHTML(@HTMLBuilder content: () -> String) -> String {
            return "\(content())"
        }

        // Utilizing the custom result builder
        let htmlContent = createHTML {
            "
Hello, World!
"
            "
This is a custom HTML builder example.
"
            2023
        }

        print(htmlContent)