https://beam.apache.org/releases/javadoc/2.71.0/org/apache/beam/runners/flink/translation/wrappers/streaming/io/source/impulse/BeamImpulseSource.html
BeamImpulseSource (Apache Beam 2.71.0)
declaration: package: org.apache.beam.runners.flink.translation.wrappers.streaming.io.source.impulse, class: BeamImpulseSource
apache beam