pub trait BangProcMacro {
// Required method
fn expand<'cx>(
&self,
ecx: &'cx mut ExtCtxt<'_>,
span: Span,
ts: TokenStream,
) -> Result<TokenStream, ErrorGuaranteed>;
}
pub trait BangProcMacro {
// Required method
fn expand<'cx>(
&self,
ecx: &'cx mut ExtCtxt<'_>,
span: Span,
ts: TokenStream,
) -> Result<TokenStream, ErrorGuaranteed>;
}