[#node-BlockAssembler-m_last_block_weight]
= xref:node.adoc[node]::xref:node/BlockAssembler.adoc[BlockAssembler]::m&lowbar;last&lowbar;block&lowbar;weight
:relfileprefix: ../../
:mrdocs:

The weight of the last assembled block (including reserved weight for block header, txs count and coinbase tx)

== Synopsis

Declared in `&lt;node&sol;miner&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
inline static
std::optional&lt;int64&lowbar;t&gt; m&lowbar;last&lowbar;block&lowbar;weight = m&lowbar;last&lowbar;block&lowbar;weight&lcub;&rcub;;
----


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