Java SpringLiquibase Rollback for Liquibasecore- 4.20.0 jar

1

Hi Anybody has idea on rollback using Liquibase-core- 4.20.0 jar?My requirement is i have to rollback using changesetid,below is my chnageset sql
– changeset Venkat:23456
CREATE TABLE example_table (
id INT PRIMARY KEY,
name VARCHAR(255)
);
–rollback:DROP TABLE IF EXISTS example_table;
How to run rollback using liquibase-core with specific changeset?appreciate if you give the liquibase command that will rollback with chnagesetid,i will use some utils class to run the command.