Map from Key ID to key metadata.
Declared in <wallet/scriptpubkeyman.h>
[[guarded_by(0x7ff371664c18), guarded_by(0x7ff3654920e8), guarded_by(0x7ff35d1b1cc8), guarded_by(0x7ff37e075b58), guarded_by(0x7ff379eac018), guarded_by(0x7ff37e0436e8)]]
std::map<CKeyID, CKeyMetadata> mapKeyMetadata;