pub trait SingleVersionQueryTransaction {
// Required methods
fn get(&mut self, key: &EncodedKey) -> Result<Option<SingleVersionValues>>;
fn contains_key(&mut self, key: &EncodedKey) -> Result<bool>;
}pub trait SingleVersionQueryTransaction {
// Required methods
fn get(&mut self, key: &EncodedKey) -> Result<Option<SingleVersionValues>>;
fn contains_key(&mut self, key: &EncodedKey) -> Result<bool>;
}