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: dwarf.rs
    path of file: ./repos/gimli/src/write
    
    the code of the file until where you have to start completion: use alloc::vec::Vec;

use crate::common::Encoding;
use crate::write::{
    AbbreviationTable, LineProgram, LineStringTable, Result, Sections, StringTable, Unit,
    UnitTable, Writer,
};

/// Writable DWARF information for more than one unit.
#[derive(Debug, Default)]
pub struct Dwarf {
    /// A table of units. These are primarily stored in the `.debug_info` section,
    //
    
    pub fn write<W: Writer>(&mut self, sections: &mut Sections<W>) -> Result<()> {
        let line_strings = self.line_strings.write(&mut sections.debug_line_str)?;
        let strings = self.strings.write(&mut sections.debug_str)?;

        let abbrev_offset = sections.debug_abbrev.offset();
        let mut abbrevs = AbbreviationTable::default();

        self.unit.write(
            sections,
            abbrev_offset,
            &mut abbrevs,
            &line_strings,
            &strings,
        )?;
        // None should exist because we didn't give out any UnitId.
        assert!(sections.debug_info_refs.is_empty());
        assert!(sections.debug_loc_refs.is_empty());
        assert!(sections.debug_loclists_refs.is_empty());

        abbrevs.write(&mut sections.debug_abbrev)?;
        Ok(())
    }