Get SWIG to cast to derived type when using libcellml::Entity::parent method.
Get SWIG to cast to derived type when using libcellml::Entity::parent method.

cellml/libcellml,cellml/libcellml,hsorby/libcellml,nickerso/libcellml,hsorby/libcellml,hsorby/libcellml,MichaelClerx/libcellml,nickerso/libcellml,cellml/libcellml,MichaelClerx/libcellml,cellml/libcellml,MichaelClerx/libcellml,hsorby/libcellml,nickerso/libcellml,nickerso/libcellml