[#BloombergLP-balm-MetricId-isValid]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/balm.adoc[balm]::xref:BloombergLP/balm/MetricId.adoc[MetricId]::isValid
:relfileprefix: ../../../
:mrdocs:

Return `true` if this metric id object contains the address of a valid `MetricDescription` object, and false `otherwise`&period;

== Synopsis

Declared in `&lt;balm&lowbar;metricid&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
bool
isValid() const;
----

== Description

Note that this method is logically equivalent to `0 !&equals; description()`&period;

== Return Value

`true` if this metric id holds a valid description, and `false` otherwise


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