use crate::Time; /// Accessimpl Time {    /// Return true if this time has been initialized to anything non-default, i.e. 0.    pub fn is_set(&self) -> bool {        *self != Self::default()    }} /// Various ways to describe a time format.#[derive(Debug, Clone, Copy)]pub enum Format {    /// A custom format limited to what's in the [`format`](mod@format) submodule.    Custom(CustomFormat),    /// The seconds since 1970, also known as unix epoch, like `1660874655`.    Unix,    /// The seconds since 1970, followed by the offset, like `1660874655 +0800`    Raw,} /// A custom format for printing and parsing time.#[derive(Clone, Copy, Debug)]pub struct CustomFormat(pub(crate) &'static str); impl CustomFormat {    /// Create a new custom `format` suitable for use with the [`jiff`] crate.    pub const fn new(format: &'static str) -> Self {        Self(format)    }} impl From<CustomFormat> for Format {    fn from(custom_format: CustomFormat) -> Format {        Format::Custom(custom_format)    }} ///pub mod format;mod init;mod write;