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: highlight.rs
    path of file: ./repos/typst/crates/typst-syntax/src
    
    the code of the file until where you have to start completion: use crate::{ast, LinkedNode, SyntaxKind, SyntaxNode};

/// A syntax highlighting tag.
#[derive(Debug, Copy, Clone, Eq, PartialEq, Hash)]
pub enum Tag {
    /// A line or block comment.
    Comment,
    /// Punctuation in code.
    Punctuation,
    /// An escape sequence or shorthand.
    Escape,
    /// Strong markup.
    Strong,
    /// Emphasized markup.
    Emph,
    /// A hyperlink.
    Link,
    /// Raw text.
    Raw,
    /// A label.
    Label,
    /// A reference to a label.
    Ref,
    /// A section heading.
    Heading,
    /// A marker of a list, enumeration, or term list.
    ListMarker,
    /// A term in a term list.
    ListTerm,
    /// The delimiters of an equatio
    
    pub fn tm_scope(&self) -> &'static str {
        match self {
            Self::Comment => "comment.typst",
            Self::Punctuation => "punctuation.typst",
            Self::Escape => "constant.character.escape.typst",
            Self::Strong => "markup.bold.typst",
            Self::Emph => "markup.italic.typst",
            Self::Link => "markup.underline.link.typst",
            Self::Raw => "markup.raw.typst",
            Self::MathDelimiter => "punctuation.definition.math.typst",
            Self::MathOperator => "keyword.operator.math.typst",
            Self::Heading => "markup.heading.typst",
            Self::ListMarker => "punctuation.definition.list.typst",
            Self::ListTerm => "markup.list.term.typst",
            Self::Label => "entity.name.label.typst",
            Self::Ref => "markup.other.reference.typst",
            Self::Keyword => "keyword.typst",
            Self::Operator => "keyword.operator.typst",
            Self::Number => "constant.numeric.typst",
            Self::String => "string.quoted.double.typst",
            Self::Function => "entity.name.function.typst",
            Self::Interpolated => "meta.interpolation.typst",
            Self::Error => "invalid.typst",
        }
    }