{"ast_node_type":"other","tokens":[{"end":56,"kind":"keyword","start":0,"text":"#[note(parse_note_pattern_alternatives_use_single_vert)]"}]}
#[note(parse_note_pattern_alternatives_use_single_vert)]
#[diag(parse_unexpected_vert_vert_before_function_parameter)]
pub(crate) struct UnexpectedVertVertBeforeFunctionParam {