How to convert String to &'static str in Rust: a complete guide

Hello everyone! I'm new to Rust and ran into a problem when working with strings. I need to pass ownership of a `String` to a function that expects `&'static str`. Here's an example code that doesn't compile:\n\n```rust\nfn process_static(s: &'static str) {\n println!("Static string: {}", s);\n}\n\nfn main() {\n let my_string = String::from("Hello, world!");\n // Error: expected &'static str, found String\n process_static(&my_string);\n}\n```\n\nThe compiler says: "`my_string` does not live long enough". I understand that `&'static str` is a string that lives for the entire program execution, while `String` is a dynamic string that can be freed. But how do I pass the contents of a `String` to a function that requires `&'static str`?\n\nI tried using `as_str()`, `to_s