[liquibase] How to rename column and modify data type in YAML?

Problem
I attempt to rename an existing column name and modify its data type in liquibase, how to define these changes in YAML?

How-To
YAML will looks like:

  - changeSet:
      id: 4
      author: albert
      changes:     
       - renameColumn:
          tableName: model
          oldColumnName: PREDICT_JSON
          newColumnName: STATISTICS_JSON        
       - modifyDataType:
          tableName: model
          columnName: STATISTICS_JSON
          newDataType: text

Reference
[1] http://www.liquibase.org/documentation/changes/rename_column.html
[2] http://www.liquibase.org/documentation/changes/modify_data_type.html