{"ast_node_type":"variable","tokens":[{"end":75,"kind":"keyword","start":0,"text":"let"}]}
    let pipe_token = file.syntax().token_at_offset(offset).right_biased()?;
fn on_pipe_typed(file: &SourceFile, offset: TextSize) -> Option<TextEdit> {
    if pipe_token.kind() != SyntaxKind::PIPE {