public OutputNotebookS3LocationFromInput withKey(String key) {
        setKey(key);
        return this;
    }
<p>
The key to the Amazon S3 location that stores the notebook execution output.
</p>

@param key
       The key to the Amazon S3 location that stores the notebook execution output.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-emr/src/main/java/com/amazonaws/services/elasticmapreduce/model/OutputNotebookS3LocationFromInput.java