question: creates a single entry registry , using registrybuilder #add class , object . concode_field_sep PlaceHolder placeHolder concode_field_sep Iterable<? extends O> getAll concode_elem_sep Iterable<? extends O> getAll concode_elem_sep Optional<O> maybeGet concode_elem_sep Optional<O> maybeGet concode_elem_sep O get concode_elem_sep O get concode_elem_sep Registry of concode_elem_sep RegistryBuilder builder concode_elem_sep Registry join concode_elem_sep Registry singleLazy concode_elem_sep Optional<O> first concode_elem_sep Optional<O> first concode_elem_sep Registry empty concode_elem_sep Registry backedBy
target: Registry function ( Class < ? super T > arg0 , T arg1 ) { return builder ( ) . add ( arg0 , arg1 ) . build ( ) ; }