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: if_condition.rs
    path of file: ./repos/Relm4/relm4-macros/src/widgets/parse
    
    the code of the file until where you have to start completion: use syn::parse::{Parse, ParseStream};
use syn::{Result, Token};

use crate::widgets::IfCondition;

impl Parse for IfCondition {
    fn parse(input: ParseStream<'_>) -> Result<Self> {
        if input.peek(Token![if]) {
            Ok(Self::If(input.parse()?, input.parse()?))
        } else if input.peek(Token![else]) {
            let else_token = input.parse()?;
            if input.peek(Token![if]) {
             
    
    fn parse(input: ParseStream<'_>) -> Result<Self> {
        if input.peek(Token![if]) {
            Ok(Self::If(input.parse()?, input.parse()?))
        } else if input.peek(Token![else]) {
            let else_token = input.parse()?;
            if input.peek(Token![if]) {
                Ok(Self::ElseIf(else_token, input.parse()?, input.parse()?))
            } else {
                Ok(Self::Else(else_token))
            }
        } else {
            Err(input.error("Expected `if`, `if else` or `else`"))
        }
    }