The multi-index container holding every mempool entry.
Declared in <txmempool.h>
[[guarded_by(0x7fbc8f683058), guarded_by(0x7fbc95d44db8), guarded_by(0x7fbca708aa78), guarded_by(0x7fbc86273318), guarded_by(0x7fbca78979f8), guarded_by(0x7fbc84ab9048), guarded_by(0x7fbc870f8548), guarded_by(0x7fbc921dfe08)]]
indexed_transaction_set mapTx;