[#BloombergLP-bdlmt-Signaler_SlotNode-SlotMapKey]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlmt.adoc[bdlmt]::xref:BloombergLP/bdlmt/Signaler_SlotNode.adoc[Signaler_SlotNode]::SlotMapKey
:relfileprefix: ../../../
:mrdocs:

Defines a "key" used to index slots in an associative collection. The first element of the pair is the slot call group; the second is the slot ID.

== Synopsis

Declared in `<bdlmt_signaler.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
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typedef xref:bsl/pair-0b.adoc[bsl::pair<int, unsigned int>] SlotMapKey;
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