pub fn event_map_to_list(
map: IndexMap<(&'_ str, &'_ str), (Vec<NonZeroUsize>, Vec<NonZeroUsize>), BuildHasherDefault<FxHasher>>,
) -> Vec<SpanGraphEvent>
pub fn event_map_to_list(
map: IndexMap<(&'_ str, &'_ str), (Vec<NonZeroUsize>, Vec<NonZeroUsize>), BuildHasherDefault<FxHasher>>,
) -> Vec<SpanGraphEvent>