[#BloombergLP-ball-operator_lshift-00c] = xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/ball.adoc[ball]::operator<< :relfileprefix: ../../ :mrdocs: Write a formatted description of the specified `rhs` to the specified `stream` and return a reference to the modifiable `stream`. == Synopsis Declared in `<ball_attributecontainerlist.h>` [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- std::ostream& operator<<( std::ostream& output, xref:BloombergLP/ball/AttributeContainerList.adoc[AttributeContainerList] const& rhs); ---- [.small]#Created with https://www.mrdocs.com[MrDocs]#