public void setFailed(Long failed) {
        this.failed = failed;
    }
<p>
The total number of items processed in child workflow executions that have failed.
</p>

@param failed
       The total number of items processed in child workflow executions that have failed.
aws-java-sdk-stepfunctions/src/main/java/com/amazonaws/services/stepfunctions/model/MapRunItemCounts.java