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: module_analyze.rs
    path of file: ./repos/farm/crates/plugin_tree_shake/src/statement_graph
    
    the code of the file until where you have to start completion: use std::collections::HashMap;
use std::hash::Hash;

use farmfe_core::module::Module;
use farmfe_co
    
  pub fn print_graph(&mut self) {
    println!("nodes: ");
    for node in self.g.node_indices() {
      let item = &self.g[node];
      println!("{:?}", item);
    }

    println!("edges: ");
    for node in self.g.node_indices() {
      let edges = self.g.edges_directed(node, Outgoing);
      for edge in edges {
        let from = &self.g[edge.source()];
        let to = &self.g[edge.target()];
        println!("{:?} -> {:?} {:?}", from, to, edge.weight().mode);
      }
    }
  }