question: gets the value of the interfacedef property . concode_field_sep List<Object> structid concode_elem_sep String label5 concode_elem_sep List<Object> admid concode_elem_sep XMLGregorianCalendar created concode_elem_sep String btype concode_elem_sep String groupid concode_elem_sep String id concode_elem_sep ObjectType mechanism concode_elem_sep ObjectType interfaceDef concode_field_sep List<Object> getSTRUCTID concode_elem_sep void setBTYPE concode_elem_sep void setInterfaceDef concode_elem_sep String getID concode_elem_sep String getBTYPE concode_elem_sep String getLabel5 concode_elem_sep ObjectType getMechanism concode_elem_sep void setMechanism concode_elem_sep void setGROUPID concode_elem_sep void setID concode_elem_sep void setCREATED concode_elem_sep String getGROUPID concode_elem_sep List<Object> getADMID concode_elem_sep XMLGregorianCalendar getCREATED concode_elem_sep void setLabel5
target: ObjectType function ( ) { return interfaceDef ; }