[#absl-any_span_transform-IdentityT-operator_call]
= xref:absl.adoc[absl]::xref:absl/any_span_transform.adoc[any_span_transform]::xref:absl/any_span_transform/IdentityT.adoc[IdentityT]::operator()
:relfileprefix: ../../../
:mrdocs:

Returns its argument unchanged.

== Synopsis

Declared in `<absl/types/any_span.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<typename T>
T&
operator()(T& v) const;
----

== Return Value

A reference to `v`.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *v*
| The value to return.
|===


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