[#ExtPubKeyMap]
= ExtPubKeyMap
:mrdocs:

Map from a derivation index to its cached extended public key&period;

== Synopsis

Declared in `&lt;script&sol;descriptor&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
using ExtPubKeyMap = std::unordered&lowbar;map&lt;uint32&lowbar;t, CExtPubKey&gt;;
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