creates a basic gryo-based org.apache.tinkerpop.gremlin.structure.io.io.builder . concode_field_sep PlaceHolder placeHolder concode_field_sep Io.Builder<GraphSONIo> graphson concode_elem_sep Io.Builder<GraphMLIo> graphml
Io . Builder < GryoIo > function ( ) { return GryoIo . build ( ) ; }