[#BloombergLP-ball-operator_lshift-0ed] = xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/ball.adoc[ball]::operator<< :relfileprefix: ../../ :mrdocs: Write the value of the specified threshold `aggregate` to the specified output `stream` and return a reference to the modifiable `stream`. == Synopsis Declared in `<ball_thresholdaggregate.h>` [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- std::ostream& operator<<( std::ostream& stream, xref:BloombergLP/ball/ThresholdAggregate.adoc[ThresholdAggregate] const& aggregate); ---- [.small]#Created with https://www.mrdocs.com[MrDocs]#