public void setLastUpdatedBy(String lastUpdatedBy) {
        this.lastUpdatedBy = lastUpdatedBy;
    }
<p>
The ARN of the user who last changed the rule.
</p>

@param lastUpdatedBy
       The ARN of the user who last changed the rule.
aws-java-sdk-codepipeline/src/main/java/com/amazonaws/services/codepipeline/model/RuleExecution.java