add a pair of type and direction to the pathexpander configuration . concode_field_sep StandardExpander expander concode_field_sep PathExpander<STATE> build concode_elem_sep PathExpanderBuilder allTypesAndDirections concode_elem_sep PathExpanderBuilder allTypes concode_elem_sep PathExpanderBuilder remove concode_elem_sep PathExpanderBuilder empty
PathExpanderBuilder function ( RelationshipType arg0 , Direction arg1 ) { return new PathExpanderBuilder ( expander . add ( arg0 , arg1 ) ) ; }