Begin building a block by creating the block builder from the transaction graph.
Declared in <txmempool.h>
[[requires_capability(0x7fb95f557928), requires_capability(0x7fb968bc9038), requires_capability(0x7fb95fdd2e78), requires_capability(0x7fb978b78238), requires_capability(0x7fb96b8fd798), requires_capability(0x7fb96e5c4268), requires_capability(0x7fb97a07e298), requires_capability(0x7fb96be45fe8)]]
void
StartBlockBuilding() const;