[#BloombergLP-bslstl-Optional_ImmovableHelper-2conversion]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslstl.adoc[bslstl]::xref:BloombergLP/bslstl/Optional_ImmovableHelper.adoc[Optional_ImmovableHelper]::operator t_TYPE
:relfileprefix: ../../../
:mrdocs:

Invoke `invocable` with `arg` and return the result as `t_TYPE`.

== Synopsis

Declared in `<bslstl_optional.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
operator t_TYPE();
----


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