Method get_bounds

crates/stdlib/src/re.rs:391–408

(
            &self,
            id: PyObjectRef,
            vm: &VirtualMachine,
        )

        }

        fn get_bounds(
            &self,
            id: PyObjectRef,
            vm: &VirtualMachine,
        ) -> PyResult<Option<Range<usize>>> {
            match_class!(match id {
                i @ PyInt => {
                    let i = usize::try_from_object(vm, i.into())?;
                    let capture = self
                        .captures
                        .get(i)
                        .ok_or_else(|| vm.new_index_error("No such group".to_owned()))?;
                    Ok(capture.clone())
                }
                _s @ PyStr => unimplemented!(),
                _ => Err(vm.new_index_error("No such group".to_owned())),
            })
        }

        fn get_group(&self, id: PyObjectRef, vm: &VirtualMachine) -> PyResult<Option<String>> {
            let bounds = self.get_bounds(id, vm)?;