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: derive.rs
    path of file: ./repos/salvo/crates/oapi-macros/src/response
    
    the code of the file until where you have to start completion: use std::borrow::Cow;
use std::{iter, mem};

use proc_macro2::{Ident, Span, TokenStream};
use proc_macro_error::{abort, emit_error};
use quote::{quote, ToTokens};
use syn::parse::ParseStream;
use syn::punctuated::Punctuated;
use syn::{Attribute, Data, Field, Fields, Generics, LitStr, Meta, Path, Token, Type, TypePath, Variant};

use crate::doc_comment::CommentAttributes;
use crate::operation::{InlineType, PathType};
use crate::schema::{EnumSchema, NamedStructSchema};
use crate::{attribute, parse_utils, Array, ResultExt};

use super::{
    Content, DeriveResponseValue, Deriv
    
    fn new(attributes: &[Attribute]) -> Self {
        Self::validate_attributes(attributes, Self::has_no_field_attributes);

        let mut derive_value = DeriveToResponsesValue::from_attributes(attributes)
            .expect("`ToResponses` must have `#[salvo(response(...))]` attribute");
        let status_code = mem::take(&mut derive_value.status_code);
        let description = {
            let s = CommentAttributes::from_attributes(attributes).as_formatted_string();
            parse_utils::Value::LitStr(LitStr::new(&s, Span::call_site()))
        };

        Self(
            (
                status_code,
                ResponseValue::from_derive_to_responses_value(derive_value, description),
            )
                .into(),
        )
    }