[ Version ( since = "0.1.10" ) ]
public void remove_nth (KeyID key, uint index)
Removes the value at position index for key from this.
If there are other keys related to key, their values at position index will also be removed from
this.
| this |
a data |
| key |
a metadata key |
| index |
index of key to be removed, starting at 0 |