How to get js-code from module?

use swc_common::{
    DUMMY_SP, 
    source_map::SourceMap
};
use swc_ecma_parser::{Parser, StringInput, lexer::Lexer, EsSyntax};
use swc_ecma_codegen::{Emitter, text_writer::JsWriter};
use swc_ecma_ast::*;
use swc_ecma_visit::{VisitMut, VisitMutWith};
use dprint_swc_ext::common::StartSourcePos;
use std::sync::Arc;

struct ImportRewriter {
    new_url: String,
}

impl VisitMut for ImportRewriter {
    fn visit_mut_module_decl(&mut self, n: &mut ModuleDecl) {
        if let ModuleDecl::Import(import_decl) = n {
            // Check if the import source matches a specific pattern
            if import_decl.src.value == "./module.js" {
                // Modify the import source
                import_decl.src = Box::new(Str {
                    span: DUMMY_SP,
                    value: self.new_url.clone().into(),
                    raw: None,
                });
            }
        }
        n.visit_mut_children_with(self);
    }
}

fn main() {
    let raw_js_str = "import { name1, name2 } from './module.js';
    const qs = require('qs');".to_string();
    let new_url = "/new/path/to/module.js".to_string();
    let start = StartSourcePos::START_SOURCE_POS;
    let end = start + raw_js_str.len();

    let string_input = StringInput::new(
        &raw_js_str,
        start.as_byte_pos(),
        end.as_byte_pos()
    );

    let lexer = Lexer::new(
        swc_ecma_parser::Syntax::Es(EsSyntax { ..Default::default() }),
        EsVersion::Es2020,
        string_input,
        None);
    
    let mut parser = Parser::new_from(lexer);

    let mut module = match parser.parse_module() {
        Ok(module) => module,
        Err(err) => panic!("Failed to parse JavaScript code: {:?}", err),
    };

    // Traverse and modify the AST
    module.visit_mut_with(&mut ImportRewriter { new_url });
    println!("{:?}", module);
}

This is my code to replace url in AST module.

[dependencies]
dprint-swc-ext = "0.17.0"
regex = "1.10.5"
swc_common = "0.34.3"
swc_ecma_ast = "0.115.1"
swc_ecma_codegen = "=0.146.8"
swc_ecma_parser = "0.146.8"
swc_ecma_visit = "0.101.0"

Please let me know how to get js-code from module?