.map { sampleValues[it.type] ?: error("no sample value for ${it.type}") }
          .toTypedArray()

      method.invoke(solo.eventListener, *args)
      method.invoke(composite, *args)

      val expectedEvent = solo.takeEvent()
      assertThat(solo.eventSequence).isEmpty()

      assertThat(left.takeEvent()::class).isEqualTo(expectedEvent::class)
      assertThat(left.eventSequence).isEmpty()

//          except operations referenced in `inputs`. These operations
//          must have a single output (these operations are typically
//          placeholders created for the sole purpose of representing
//          an input. We can relax this constraint if there are
//          compelling use cases).
//          - If an array is given (`num_opers` >= 0), all operations