public UpdateFlowSourceRequest withSourceArn(String sourceArn) {
        setSourceArn(sourceArn);
        return this;
    }
The ARN of the source that you want to update.

@param sourceArn
       The ARN of the source that you want to update.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-mediaconnect/src/main/java/com/amazonaws/services/mediaconnect/model/UpdateFlowSourceRequest.java