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: mod.rs
    path of file: ./repos/foundry/crates/doc/src/parser
    
    the code of the file until where you have to start completion: //! The parser module.

use forge_fmt::{FormatterConfig, Visitable, Visitor};
use itertools::Itertools;
use solang_parser::{
    doccomment::{parse_doccomments, DocComment},
    pt::{
        Comment as SolangComment, EnumDefinition, ErrorDefinition, EventDefinition,
        FunctionDefinition, Identifier, Loc, SourceUnit, SourceUnitPart, StructDefinition,
        TypeDefinition, VariableDefinition,
    },
};

/// Parser error.
pub mod error;
use error::{ParserError, ParserResult};

/// Parser item.
mod item;
pub use item::{ParseItem, ParseSource};

/// Do
    
    fn parse_docs_range(&mut self, start: usize, end: usize) -> ParserResult<Comments> {
        let mut res = vec![];
        for comment in parse_doccomments(&self.comments, start, end) {
            match comment {
                DocComment::Line { comment } => res.push(comment),
                DocComment::Block { comments } => res.extend(comments),
            }
        }

        // Filter out `@solidity` and empty tags
        // See https://docs.soliditylang.org/en/v0.8.17/assembly.html#memory-safety
        let res = res
            .into_iter()
            .filter(|c| c.tag.trim() != "solidity" && !c.tag.trim().is_empty())
            .collect_vec();
        Ok(res.into())
    }