+ * @param[in] handle to copy from
+ * @return reference to this
+ */
+ Magnifier& operator=(const Magnifier& handle);
+
+ /**
+ * Move constructor. Creates another handle that points to the same real object
+ * @param[in] rhs to move from
+ */
+ Magnifier(Magnifier&& rhs);
+
+ /**
+ * Move assignment operator. Changes this handle to point to another real object
+ * @param[in] rhs to move from
+ * @return reference to this