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: stub_procedure_encoder.rs
    path of file: ./repos/prusti-dev/prusti-viper/src/encoder
    
    the code of the file until where you have to start completion: // Â© 2020, ETH Zurich
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.

use crate::encoder::{
    high::types::HighTypeEncoderInterface,
    mir_en
    
    pub fn encode(self) -> vir::CfgMethod {
        let mut cfg_method = vir::CfgMethod::new(
            // method name
            self.encoder.encode_item_name(self.def_id),
            // formal returns
            vec![],
            // local vars
            vec![],
            // reserved labels
            vec![],
        );

        // Declare the formal return
        for local in self.mir.local_decls.indices().take(1) {
            let name = self.mir_encoder.encode_local_var_name(local);
            let typ = self
                .encoder
                .encode_type(self.mir_encoder.get_local_ty(local))
                .unwrap(); // will panic if attempting to encode unsupported type
            cfg_method.add_formal_return(&name, typ)
        }

        // Initialize a single CFG block
        let stub_cfg_block = cfg_method.add_block(
            "stub",
            vec![
                vir::Stmt::comment("========== stub =========="),
                // vir::Stmt::comment(format!("Name: {:?}", self.procedure.get_name())),
                vir::Stmt::comment(format!("Def path: {:?}", self.procedure.get_def_path())),
                vir::Stmt::comment(format!("Span: {:?}", self.procedure.get_span())),
            ],
        );
        cfg_method.set_successor(stub_cfg_block, Successor::Return);

        // Dump method
        if config::dump_debug_info() {
            let method_name = cfg_method.name();
            let source_path = self.encoder.env().name.source_path();
            let source_filename = source_path.file_name().unwrap().to_str().unwrap();

            self.encoder
                .log_vir_program_before_foldunfold(cfg_method.to_string());

            log::report_with_writer(
                "graphviz_method_stub",
                format!("{source_filename}.{method_name}.dot"),
                |writer| cfg_method.to_graphviz(writer),
            );
        }

        cfg_method
    }