[#TaprootBuilder-Finalize]
= xref:TaprootBuilder.adoc[TaprootBuilder]::Finalize
:relfileprefix: ../
:mrdocs:

Finalize the construction. Can only be called when IsComplete() is true. internal_key.IsFullyValid() must be true.

== Synopsis

Declared in `<script/signingprovider.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:TaprootBuilder.adoc[TaprootBuilder]&
Finalize(xref:XOnlyPubKey.adoc[XOnlyPubKey] const& internal_key);
----

== Return Value

A reference to this builder for chaining.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *internal_key*
| The BIP341 internal key to tweak with the tree.
|===


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