[#TxGraph-GetCluster]
= xref:TxGraph.adoc[TxGraph]::GetCluster
:relfileprefix: ../
:mrdocs:

Get pointers to all transactions in the cluster which arg is in. The transactions are returned in graph order. The queried graph must not be oversized. Returns {} if arg does not exist in the queried graph.

== Synopsis

Declared in `<txgraph.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
virtual
std::vector<Ref*>
GetCluster(
    xref:TxGraph/Ref.adoc[Ref] const& arg,
    xref:TxGraph/Level.adoc[Level] level) noexcept = 0;
----

== Return Value

The cluster's transactions in graph order, or {} if the transaction does not exist.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *arg*
| Reference to a transaction in the cluster of interest.
| *level*
| Which graph (main or staging) to query.
|===


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