isEqual method
Compares this object with the given object for equality.
This object is considered "equal" to the other object if and only if
other performs the same vector distance search as this VectorQuery and
the underlying Query of other compares equal to that of this object
using Query.isEqual().
@param other The object to compare to this object for equality.
@return true if this object is "equal" to the given object, as
defined above, or false otherwise.
Implementation
external bool isEqual(VectorQuery other);