Trait SingleWriterImplByFamily
Source pub trait SingleWriterImplByFamily<FamilyRepresentative: ?Sized>: KeyValueDbTypes {
    // Required methods
    fn delete_impl(
        &mut self,
        key: &[u8],
    ) -> Result<Option<Option<Self::ValueType>>>;
    fn delete_with_number_key_impl(
        &mut self,
        key: i64,
    ) -> Result<Option<Option<Self::ValueType>>>;
    fn put_impl(
        &mut self,
        key: &[u8],
        value: &<Self::ValueType as DbValueType>::Type,
    ) -> Result<Option<Option<Self::ValueType>>>;
    fn put_with_number_key_impl(
        &mut self,
        key: i64,
        value: &<Self::ValueType as DbValueType>::Type,
    ) -> Result<Option<Option<Self::ValueType>>>;
}