{"ast_node_type":"other","tokens":[{"end":29,"kind":"keyword","start":0,"text":"{"}]}
                            {
                                    call_str[(eq_idx + 2)..].find(|c: char| !c.is_whitespace())
                                let rhs_pos = span.lo() + BytePos::from_usize(eq_idx + 2 + rhs_idx);