private String getStreamRequestHeader() {
		StringBuilder buf = new StringBuilder();
		buf.append(HEADER_PREFIX);
		// streamID as 16-digit hex value
		buf.append(StringUtilities.pad(Long.toHexString(streamID), '0', 16));
		// authenticationToken as 16-digit hex value
		buf.append(StringUtilities.pad(Long.toHexString(authenticationToken), '0', 16));
		buf.append(HEADER_SUFFIX);
		return buf.toString();
	}
Get the stream request header to be sent when establishing the server
connection.
<pre>
Format: "{@value #HEADER_PREFIX}xxxxxxxxxxxxxxxxXXXXXXXXXXXXXXXX{@value #HEADER_SUFFIX}"
  where x's provide the stream ID as a hex value, and
  X's provide the stream authentication token.
</pre>
@return stream request header
@see BlockStreamServer
Ghidra/Features/GhidraServer/src/main/java/ghidra/server/stream/RemoteBlockStreamHandle.java