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: hashable_value.rs
    path of file: ./repos/nushell/crates/nu-command/src/charting
    
    the code of the file until where you have to start completion: use chrono::{DateTime, FixedOffset};
use nu_protocol::{ShellError, Span, Value};
use std::hash::{Hash, Hasher};

/// A subset of [Value](crate::Value), which is hashable.
/// And it means that we can put the value into something like [HashMap](std::collections::H
    
    fn hash<H: Hasher>(&self, state: &mut H) {
        match self {
            HashableValue::Bool { val, .. } => val.hash(state),
            HashableValue::Int { val, .. } => val.hash(state),
            HashableValue::Filesize { val, .. } => val.hash(state),
            HashableValue::Duration { val, .. } => val.hash(state),
            HashableValue::Date { val, .. } => val.hash(state),
            HashableValue::Float { val, .. } => val.hash(state),
            HashableValue::String { val, .. } => val.hash(state),
            HashableValue::Binary { val, .. } => val.hash(state),
        }
    }