Example of creating a Gist using Python

init-deep-dive_rust-proc-macro.rs

pub struct Comprehension {
    pub mapping: Mapping,
    pub for_if_clause: ForIfClause,
    pub additional_for_if_clauses: Vec<ForIfClause>,
}

impl Parse for Comprehension {
    fn parse(input: ParseStream) -> syn::Result<Self> {
        Ok(Self {
            mapping: input.parse()?,
            for_if_clause: input.parse()?,
            additional_for_if_clauses: parse_zero_or_more(input),
        })
    }
}