{"ast_node_type":"function","tokens":[{"end":88,"kind":"keyword","start":0,"text":"pub(crate)"}]}
pub(crate) fn move_to_mod_rs(acc: &mut Assists, ctx: &AssistContext<'_>) -> Option<()> {
// ```
    let source_file = ctx.find_node_at_offset::<ast::SourceFile>()?;