pub fn apply_metadata_observation(
db: &PlacesDb,
observation: HistoryMetadataObservation,
options: NoteHistoryMetadataObservationOptions,
) -> Result<()>
pub fn apply_metadata_observation(
db: &PlacesDb,
observation: HistoryMetadataObservation,
options: NoteHistoryMetadataObservationOptions,
) -> Result<()>