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: lit.rs
    path of file: ./repos/Daft/src/daft-dsl/src
    
    the code of the file until where you have to start completion: use crate::expr::Expr;

use daft_core::datatypes::logical::{Decimal128Array, TimeArray};
use daft_core::utils::display_table::{display_decimal128, display_time64};
use daft_core::utils::hashable_float_wrapper::FloatWrapper;
use daft_core::{array::ops::full::FullNull, datatypes::DataType};
use daft_core::{
    datatypes::{
        logical::{DateArray, TimestampArray},
        TimeUnit,
    },
    series::Series,
    utils::display_table::{display_date32, display_series_literal, display_timestamp},
};
use serde::{Deserialize, Serialize};
use std::{
    fmt::{Display, Formatter, Result},
    hash::{Hash, Hasher},
};

#[cfg(feature = "python")]
use crate::pyobject::DaftPyObject;

/// Stores a literal value for queries and computations.
/// We only need to support the limited types below since those are the types that we would get from python.
#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
pub enum LiteralValue {
    Null,
    /// A binary true or false.
    Boolean(bool),
    /// A UTF8 encoded string type.
    Utf8(String),
    /// A raw binary array
    Binary(Vec<u8>),
    /// A 32-bit signed integer number.
    Int32(i32),
    /// A 32-bit unsigned integer number.
    UInt32(u32),
    /// A 64-bit signed integer number.
    Int64(i64),
    /// A 64-bit 
    
    fn hash<H: Hasher>(&self, state: &mut H) {
        use LiteralValue::*;

        match self {
            // Stable hash for Null variant.
            Null => 1.hash(state),
            Boolean(bool) => bool.hash(state),
            Utf8(s) => s.hash(state),
            Binary(arr) => arr.hash(state),
            Int32(n) => n.hash(state),
            UInt32(n) => n.hash(state),
            Int64(n) => n.hash(state),
            UInt64(n) => n.hash(state),
            Date(n) => n.hash(state),
            Time(n, tu) => {
                n.hash(state);
                tu.hash(state);
            }
            Timestamp(n, tu, tz) => {
                n.hash(state);
                tu.hash(state);
                tz.hash(state);
            }
            // Wrap float64 in hashable newtype.
            Float64(n) => FloatWrapper(*n).hash(state),
            Decimal(n, precision, scale) => {
                n.hash(state);
                precision.hash(state);
                scale.hash(state);
            }
            Series(series) => {
                let hash_result = series.hash(None);
                match hash_result {
                    Ok(hash) => hash.into_iter().for_each(|i| i.hash(state)),
                    Err(_) => panic!("Cannot hash series"),
                }
            }
            #[cfg(feature = "python")]
            Python(py_obj) => py_obj.hash(state),
        }
    }