public SrtCallerSourceRequest withStreamId(String streamId) {
        setStreamId(streamId);
        return this;
    }
This value is required if the upstream system uses this identifier because without it, the SRT handshake between
MediaLive (the caller) and the upstream system (the listener) might fail.

@param streamId
       This value is required if the upstream system uses this identifier because without it, the SRT handshake
       between MediaLive (the caller) and the upstream system (the listener) might fail.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-medialive/src/main/java/com/amazonaws/services/medialive/model/SrtCallerSourceRequest.java