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: mod.rs
    path of file: ./repos/Hyperspeedcube/src/logfile
    
    the code of the file until where you have to start completion: use anyhow::{anyhow, Context, Result};
use bitvec::vec::BitVec;
use num_enum::FromPrimitive;
use serde::{Deserialize, Serialize};
use std::collections::BTreeMap;
use std::error::Error;
use std::fmt;
#[cfg(not(target_arch = "wasm32"))]
use std::path::Path;
use std::str::FromStr;
use strum::IntoEnumIterator;

mod mc4d_compat;

use crate::puzzle::*;

/// Loads a log file string and returns the puzzle state, along with any
/// warnings.
pub fn 
    
    fn scramble(&self) -> (Vec<Twist>, Vec<TwistParseError<'_>>) {
        let mut ret_twists = vec![];
        let mut ret_errors = vec![];
        for twist_str in self.scramble.split_whitespace() {
            match twist_str.parse() {
                Ok(twist) => ret_twists.push(twist),
                Err(()) => ret_errors.push(TwistParseError {
                    twist_str,
                    error_msg: "invalid twist".to_string(),
                }),
            }
        }
        (ret_twists, ret_errors)
    }