Get an object value at {@code pos}.
Add an object value at the end of the tuple.
Get a boolean value at {@code pos}.
Get a buffer value at {@code pos}.
Get a double value at {@code pos}.
Get a float value at {@code pos}.
Get an integer value at {@code pos}.
Get a long value at {@code pos}.
Get a short value at {@code pos}.
Get a string value at {@code pos}.
Get an object value at {@code pos}.
@return the tuple size
A general purpose tuple.