public Slice[] EncodeKeyRange <TElement>([NotNull] TElement[] elements, Func <TElement, T> selector)
 {
     return(FdbKey.Merge(this.Key, m_encoder.EncodeRange(elements, selector)));
 }
 public Slice[] EncodeKeyRange([NotNull] IEnumerable <T> keys)
 {
     return(FdbKey.Merge(this.Key, m_encoder.EncodeRange(keys)));
 }
 public Slice[] EncodeKeyRange([NotNull] T[] keys)
 {
     return(FdbKey.Merge(this.Key, m_encoder.EncodeRange(keys)));
 }