use proc_macro::TokenStream;use quote::quote;use syn::{DeriveInput, parse_macro_input}; pub fn derive_register_component(input: TokenStream) -> TokenStream {    let input = parse_macro_input!(input as DeriveInput);    let name = input.ident;    let reg_fn_name = syn::Ident::new(        &format!("__component_registry_internal_register_{}", name),        name.span(),    );    let expanded = quote! {        const _: () = {            struct AssertComponent<T: component::Component>(::std::marker::PhantomData<T>);            let _ = AssertComponent::<#name>(::std::marker::PhantomData);        };         #[allow(non_snake_case)]        #[linkme::distributed_slice(component::__ALL_COMPONENTS)]        fn #reg_fn_name() {            component::register_component::<#name>();        }    };    expanded.into()}