Defines the method signature for the callback to the beforeDrag interceptor. This method can return boolean false to
abort the connection drag, or it can return an object containing values that will be used as the data for the connection
that is created.
Defines the method signature for the callback to the
beforeDraginterceptor. This method can return booleanfalseto abort the connection drag, or it can return an object containing values that will be used as thedatafor the connection that is created.