Maps a txid to the fee delta applied to it via PrioritiseTransaction().
Declared in <txmempool.h>
[[guarded_by(0x7f95135d1c08), guarded_by(0x7f9501b10fe8), guarded_by(0x7f950ec771d8), guarded_by(0x7f9525ea6f28), guarded_by(0x7f9515096668), guarded_by(0x7f950826a908), guarded_by(0x7f94f856e018), guarded_by(0x7f9513c58208)]]
std::map<Txid, CAmount> mapDeltas;