oracle12c how-to get detailed info about gather stat job

from oracle 12c it is possible to find out detailed information about gather stats job
in em you may find it at

or use dbms_stats.report_* to get info
detailed at https://docs.oracle.com/database/121/TGSQL/tgsql_astat.htm#TGSQL95102

I use it this way:

variable mystatsreport clob
declare
    begin
    :mystatsreport := dbms_stats.report_stats_operations(
    since=>SYSTIMESTAMP-3,
    until=>SYSTIMESTAMP,
    detail_level=>'ALL',
    format=>'TEXT');
    end;
   /

print mystatsreport

variable mystatsreport clob
declare
    begin
    :mystatsreport := dbms_stats.report_single_stats_operation ( opid => 11898,detail_level => 'TYPICAL', format =>'TEXT' );
    end;
   /
print mystatsreport

variable mystatsreport clob
declare
    begin
    :mystatsreport := dbms_stats.report_single_stats_operation ( opid => 11898,detail_level => 'TYPICAL', format =>'TEXT' );
    end;
   /
   print mystatsreport