[#SerializeHDKeypaths]
= SerializeHDKeypaths
:mrdocs:

Serialize a map of HD keypaths to a stream under the given key type.

== Synopsis

Declared in `<psbt.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<typename Stream>
void
SerializeHDKeypaths(
    Stream& s,
    std::map<CPubKey, KeyOriginInfo> const& hd_keypaths,
    xref:CompactSizeWriter.adoc[CompactSizeWriter] type);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *s*
| The output stream.
| *hd_keypaths*
| The public‐key‐to‐keypath map to serialize.
| *type*
| The map key type byte to write for each entry.
|===


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