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: value.rs
    path of file: ./repos/erg/crates/erg_compiler/ty
    
    the code of the file until where you have to start completion: //! defines `ValueObj` (used in the compiler, VM).
//!
//! コンパイラ、VM等で使われる(データも保持した)値オブジェクトを定義する
use std::cmp::Ordering;
use std::fmt;
use std::hash::{Hash, Hasher};
use std::ops::Neg;
use std::sync::Arc;

use erg_common::dict::Dict;
use erg_common::error::{ErrorCore, ErrorKind, Location};
use erg_common::fresh::FRESH_GEN;
use erg_common::io::Input;
use erg_common::python_util::PythonVersion;
use erg_common::serialize::*;
use erg_common::set::Set;
use erg_common::traits::LimitedDisplay;
use erg_common::{dict, fmt_iter, impl_display_from_debug, log, switch_lang};
use erg_common::{ArcArray, Str};
use erg_parser::ast::{ConstArgs, ConstExpr};

use crate::context::eval::type_from_token_kind;
use crate::context::Context;

use self::value_set::inner_class;

use super::codeobj::{tuple_into_bytes, CodeObj};
use super::constructors::{array_t, dict_t, refinement, set_t, tuple_t, unsized_array_t};
use super::typaram::{OpKind, TyParam};
use super::{ConstSubr, Field, HasType, Predicate, Type};
use super::{CONTAINER_OMIT_THRESHOLD, STR_OMIT_THRESHOLD};

pub struct EvalValueError(pub Box<ErrorCore>);

impl From<ErrorCore> for EvalValueError {
    fn from(core: ErrorCore) -> Self {
        Self(Box::new(core))
    }
}

impl From<EvalValueError> for ErrorCore {
    fn from(err
    
    pub fn try_lt(self, other: Self) -> Option<Self> {
        match (self, other) {
            (Self::Int(l), Self::Int(r)) => Some(Self::from(l < r)),
            (Self::Nat(l), Self::Nat(r)) => Some(Self::from(l < r)),
            (Self::Float(l), Self::Float(r)) => Some(Self::from(l < r)),
            (Self::Int(l), Self::Nat(r)) => Some(Self::from(l < r as i32)),
            (Self::Nat(l), Self::Int(r)) => Some(Self::from((l as i32) < r)),
            (Self::Float(l), Self::Nat(r)) => Some(Self::from(l < r as f64)),
            (Self::Nat(l), Self::Float(r)) => Some(Self::from((l as f64) < r)),
            (Self::Float(l), Self::Int(r)) => Some(Self::from(l < r as f64)),
            (Self::Int(l), Self::Float(r)) => Some(Self::from((l as f64) < r)),
            (Self::Inf, Self::Inf) | (Self::NegInf, Self::NegInf) => Some(Self::Bool(false)),
            (Self::Inf, Self::Nat(_) | Self::Int(_) | Self::Float(_) | Self::Bool(_))
            | (Self::Nat(_) | Self::Int(_) | Self::Float(_) | Self::Bool(_), Self::NegInf) => {
                Some(Self::Bool(false))
            }
            (Self::NegInf, Self::Nat(_) | Self::Int(_) | Self::Float(_) | Self::Bool(_))
            | (Self::Nat(_) | Self::Int(_) | Self::Float(_) | Self::Bool(_), Self::Inf) => {
                Some(Self::Bool(true))
            }
            _ => None,
        }
    }