[#UpdatePSBTOutput]
= UpdatePSBTOutput
:mrdocs:

Updates a PSBTOutput with information from provider.

== Synopsis

Declared in `<psbt.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
UpdatePSBTOutput(
    xref:SigningProvider.adoc[SigningProvider] const& provider,
    xref:PartiallySignedTransaction.adoc[PartiallySignedTransaction]& psbt,
    int index);
----

== Description

This fills in the redeem_script, witness_script, and hd_keypaths where possible.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *provider*
| The source of scripts and derivation information.
| *psbt*
| The PSBT containing the output.
| *index*
| The index of the output to update.
|===


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