mod advanced_errors;
mod clippy;
mod collections;
mod conversions;
mod enums;
mod error_handling;
mod functions;
mod generics;
mod r#if;
mod intro;
mod macros;
mod modules;
mod move_semantics;
mod option;
mod primitive_types;
mod quiz1;
mod quiz2;
mod quiz3;
mod quiz4;
mod standard_library_types;
mod strings;
mod structs;
mod tests;
mod threads;
mod traits;
mod variables;