retains_activity_filter Retains activities base on their name (concept:name). Parameters activity_names: Iterable[str] Activity names to filter. Example from pybeamline.sources import log_source from pybeamline.sinks.print_sink import print_sink from pybeamline.filters import retains_activity_filter log_source(["ABC", "ACB", "EFG"]).pipe( retains_activity_filter("G") ).subscribe(print_sink())