question: returns the type of interval observed . concode_field_sep int sampleCount concode_elem_sep List<Event> eventList concode_elem_sep int colourStateCount concode_elem_sep int intervalCount concode_elem_sep int[][] lineageCount concode_elem_sep Type units concode_field_sep boolean isBinaryCoalescent concode_elem_sep Event getEvent concode_elem_sep double getInterval concode_elem_sep int extractSampleEvents concode_elem_sep int getSampleCount concode_elem_sep int getPopulationCount concode_elem_sep void extractMigrationEvents concode_elem_sep int getIntervalCount concode_elem_sep void extractCoalescentEvents concode_elem_sep boolean isCoalescentOnly concode_elem_sep int getLineageCount concode_elem_sep int getLineageCount concode_elem_sep int getCoalescentEvents concode_elem_sep double getTotalDuration concode_elem_sep Type getUnits concode_elem_sep void setUnits
target: IntervalType function ( int arg0 ) { return getEvent ( arg0 ) . getType ( ) ; }