fn commit_meta_to_labels<'a>(
meta: &VariantDict,
keys: impl IntoIterator<Item = &'a str>,
opt_keys: impl IntoIterator<Item = &'a str>,
labels: &mut HashMap<String, String>,
) -> Result<()>fn commit_meta_to_labels<'a>(
meta: &VariantDict,
keys: impl IntoIterator<Item = &'a str>,
opt_keys: impl IntoIterator<Item = &'a str>,
labels: &mut HashMap<String, String>,
) -> Result<()>