You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: codegen.rs
    path of file: ./repos/pavex/libs/pavexc/src/compiler/analyses/processing_pipeline
    
    the code of the file until where you have to start completion: use bimap::BiHashMap;
use guppy::PackageId;
use indexmap::IndexSet;
use proc_macro2::{Ident, TokenStream};
use quote::{format_ident, quote, ToTokens};
use syn::ItemFn
    
    pub(crate) fn as_inline_module(&self) -> TokenStream {
        let Self {
            stages,
            next_states,
            module_name,
        } = self;
        let module_name = format_ident!("{}", module_name);
        quote! {
            pub mod #module_name {
                #(#stages)*
                #(#next_states)*
            }
        }
    }